Praxis Data Lab · Variable History

Variable history and harmonization report.

Review variable definitions, cycle chronology, survey design, laboratory methods, method-change boundaries, detection limits, and evidence-backed harmonization actions.

3,556matching variable codes

3,961 release records across 133 datasets and 1 cycles.

Search scope

Filtered NHANES variable history

Cycle: 2017-2020.

Harmonization summary

3,339 label-stable codes

Label changes detected
10
Multiple dataset contexts
217
Unique codes
3,556
Enriched codes in this report
2

Scientific safeguard

Qualified assessment is authoritative; chronology remains supporting evidence.

Praxis separates source-stated method or instrument changes from automated differences in CDC/NCHS method text. The qualified harmonization assessment below is the researcher-facing conclusion; method chronology explains the underlying evidence and does not override that adjudication.

Variable-by-variable chronology

Qualified harmonization assessment and indexed evidence

Each variable first shows the current qualified assessment used by Study Builder, followed by cycle-specific source evidence and method chronology.

ACD011ACompatible with harmonization

What language(s) {do you/does SP} usually speak at home?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2011-2012 → 2013-2014 · 2013-2014 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • What language(s) {do you/does SP} usually speak at home?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_ACQ — What language(s) {do you/does SP} usually speak at home? — Acculturation (Questionnaire)
ACD011BCompatible with harmonization

What language(s) {do you/does SP} usually speak at home?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2011-2012 → 2013-2014 · 2013-2014 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • What language(s) {do you/does SP} usually speak at home?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_ACQ — What language(s) {do you/does SP} usually speak at home? — Acculturation (Questionnaire)
ACD011CCompatible with harmonization

What language(s) {do you/does SP} usually speak at home?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2011-2012 → 2013-2014 · 2013-2014 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • What language(s) {do you/does SP} usually speak at home?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_ACQ — What language(s) {do you/does SP} usually speak at home? — Acculturation (Questionnaire)
ACD040Compatible with harmonization

Now I'm going to ask you about language use. What language(s) {do you/does SP} usually speak at home? {Do you/Does he/Does she} speak only Spanish, more Spanish than English, both equally, more English than Spanish, or only English?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2013-2014 · 2013-2014 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020 · 2017-2020 → 2021-2023

Praxis harmonization actions
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Confirm that the construct and coding are unchanged before pooling or recoding.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Now I'm going to ask you about language use. What language(s) {do you/does SP} usually speak at home? {Do you/Does he/Does she} speak only Spanish, more Spanish than English, both equally, more English than Spanish, or only English?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_ACQ — Now I'm going to ask you about language use. What language(s) {do you/does SP} usually speak at home? {Do you/Does he/Does she} speak only Spanish, more Spanish than English, both equally, more English than Spanish, or only English? — Acculturation (Questionnaire)
ACD110Compatible with harmonization

{Do you/Does SP} speak only (NON-ENGLISH LANGUAGE), more (NON-ENGLISH LANGUAGE) than English, both equally, more English than (NON-ENGLISH LANGUAGE), or only English?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2011-2012 → 2013-2014 · 2013-2014 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • {Do you/Does SP} speak only (NON-ENGLISH LANGUAGE), more (NON-ENGLISH LANGUAGE) than English, both equally, more English than (NON-ENGLISH LANGUAGE), or only English?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_ACQ — {Do you/Does SP} speak only (NON-ENGLISH LANGUAGE), more (NON-ENGLISH LANGUAGE) than English, both equally, more English than (NON-ENGLISH LANGUAGE), or only English? — Acculturation (Questionnaire)
AGQ030Compatible with harmonization

During the past 12 months, {have you/has SP} had an episode of hay fever?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2013-2014 · 2013-2014 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020 · 2017-2020 → 2021-2023

Praxis harmonization actions
  • Confirm that the construct and coding are unchanged before pooling or recoding.
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • During the past 12 months, {have you/has SP} had an episode of hay fever?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_MCQ — During the past 12 months, {have you/has SP} had an episode of hay fever? — Medical Conditions (Questionnaire)
AIALANGACompatible with harmonization

Language of the MEC ACASI Interview Instrument

Observed years
20172020
Release records
1
Datasets
1
Components
Demographics
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2011-2012 → 2013-2014 · 2013-2014 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Language of the MEC ACASI Interview Instrument2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_DEMO — Language of the MEC ACASI Interview Instrument — Demographic Variables and Sample Weights (Demographics)
ALD020Compatible with harmonization

During your life, on how many days have you had at least one drink of alcohol?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2005-2006 · 2005-2006 → 2007-2008 · 2011-2012 → 2013-2014 · 2013-2014 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020 · 2017-2020 → 2021-2023

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • During your life, on how many days have you had at least one drink of alcohol?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_ALQY_R — During your life, on how many days have you had at least one drink of alcohol? — Alcohol Use - Youth (Questionnaire) — Note: RDC Only
ALD030Compatible with harmonization

During the past 30 days, on how many days did you have at least one drink of alcohol?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2005-2006 · 2005-2006 → 2007-2008 · 2011-2012 → 2013-2014 · 2013-2014 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020 · 2017-2020 → 2021-2023

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • During the past 30 days, on how many days did you have at least one drink of alcohol?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_ALQY_R — During the past 30 days, on how many days did you have at least one drink of alcohol? — Alcohol Use - Youth (Questionnaire) — Note: RDC Only
ALD040Compatible with harmonization

During the past 30 days, on how many days did you have {'4' Female, '5' Male - DISPLAY NUMBER} or more drinks of alcohol in a row, that is, within a couple of hours?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2005-2006 · 2005-2006 → 2007-2008 · 2011-2012 → 2013-2014 · 2013-2014 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020 · 2017-2020 → 2021-2023

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Confirm that the construct and coding are unchanged before pooling or recoding.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • During the past 30 days, on how many days did you have {'4' Female, '5' Male - DISPLAY NUMBER} or more drinks of alcohol in a row, that is, within a couple of hours?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_ALQY_R — During the past 30 days, on how many days did you have {'4' Female, '5' Male - DISPLAY NUMBER} or more drinks of alcohol in a row, that is, within a couple of hours? — Alcohol Use - Youth (Questionnaire) — Note: RDC Only
ALQ010Compatible with harmonization

How old were you when you had your first drink of alcohol, other than a few sips?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2005-2006 · 2005-2006 → 2007-2008 · 2011-2012 → 2013-2014 · 2013-2014 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020 · 2017-2020 → 2021-2023

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • How old were you when you had your first drink of alcohol, other than a few sips?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_ALQY_R — How old were you when you had your first drink of alcohol, other than a few sips? — Alcohol Use - Youth (Questionnaire) — Note: RDC Only
ALQ111Compatible with harmonization

The next questions are about drinking alcoholic beverages. Included are liquor (such as whiskey or gin), beer, wine, wine coolers, and any other type of alcoholic beverage. In {your/SP's} entire life, {have you/has he/has she} had at least 1 drink of any kind of alcohol, not counting small tastes or sips? By a drink, I mean a 12 oz. beer, a 5 oz. glass of wine, or one and a half ounces of liquor.

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020 · 2017-2020 → 2021-2023

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • The next questions are about drinking alcoholic beverages. Included are liquor (such as whiskey or gin), beer, wine, wine coolers, and any other type of alcoholic beverage. In {your/SP's} entire life, {have you/has he/has she} had at least 1 drink of any kind of alcohol, not counting small tastes or sips? By a drink, I mean a 12 oz. beer, a 5 oz. glass of wine, or one and a half ounces of liquor.2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_ALQ — The next questions are about drinking alcoholic beverages. Included are liquor (such as whiskey or gin), beer, wine, wine coolers, and any other type of alcoholic beverage. In {your/SP's} entire life, {have you/has he/has she} had at least 1 drink of any kind of alcohol, not counting small tastes or sips? By a drink, I mean a 12 oz. beer, a 5 oz. glass of wine, or one and a half ounces of liquor. — Alcohol Use (Questionnaire)
ALQ121Compatible with harmonization

During the past 12 months, about how often did {you/SP} drink any type of alcoholic beverage? PROBE: How many days per week, per month, or per year did {you/SP} drink?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020 · 2017-2020 → 2021-2023

Praxis harmonization actions
  • Confirm that the construct and coding are unchanged before pooling or recoding.
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • During the past 12 months, about how often did {you/SP} drink any type of alcoholic beverage? PROBE: How many days per week, per month, or per year did {you/SP} drink?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_ALQ — During the past 12 months, about how often did {you/SP} drink any type of alcoholic beverage? PROBE: How many days per week, per month, or per year did {you/SP} drink? — Alcohol Use (Questionnaire)
ALQ130Compatible with harmonization

During the past 12 months, on those days that {you/SP} drank alcoholic beverages, on the average, how many drinks did {you/he/she} have? By a drink, I mean a 12 oz. beer, a 5 oz. glass of wine, or one and a half ounces of liquor.)

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2013-2014 · 2013-2014 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020 · 2017-2020 → 2021-2023

Praxis harmonization actions
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Confirm that the construct and coding are unchanged before pooling or recoding.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • During the past 12 months, on those days that {you/SP} drank alcoholic beverages, on the average, how many drinks did {you/he/she} have? By a drink, I mean a 12 oz. beer, a 5 oz. glass of wine, or one and a half ounces of liquor.)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_ALQ — During the past 12 months, on those days that {you/SP} drank alcoholic beverages, on the average, how many drinks did {you/he/she} have? By a drink, I mean a 12 oz. beer, a 5 oz. glass of wine, or one and a half ounces of liquor.) — Alcohol Use (Questionnaire)
ALQ142Compatible with harmonization

During the past 12 months, about how often did {you/SP} have {DISPLAY NUMBER} or more drinks of any alcoholic beverage? PROBE: How many days per week, per month, or per year did {you/SP} have {DISPLAY NUMBER} or more drinks in a single day?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020 · 2017-2020 → 2021-2023

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Confirm that the construct and coding are unchanged before pooling or recoding.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • During the past 12 months, about how often did {you/SP} have {DISPLAY NUMBER} or more drinks of any alcoholic beverage? PROBE: How many days per week, per month, or per year did {you/SP} have {DISPLAY NUMBER} or more drinks in a single day?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_ALQ — During the past 12 months, about how often did {you/SP} have {DISPLAY NUMBER} or more drinks of any alcoholic beverage? PROBE: How many days per week, per month, or per year did {you/SP} have {DISPLAY NUMBER} or more drinks in a single day? — Alcohol Use (Questionnaire)
ALQ151Compatible with harmonization

Was there ever a time or times in {your/SP's} life when {you/he/she} drank {DISPLAY NUMBER} or more drinks of any kind of alcoholic beverage almost every day?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2011-2012 → 2013-2014 · 2013-2014 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020 · 2017-2020 → 2021-2023

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Confirm that the construct and coding are unchanged before pooling or recoding.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Was there ever a time or times in {your/SP's} life when {you/he/she} drank {DISPLAY NUMBER} or more drinks of any kind of alcoholic beverage almost every day?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_ALQ — Was there ever a time or times in {your/SP's} life when {you/he/she} drank {DISPLAY NUMBER} or more drinks of any kind of alcoholic beverage almost every day? — Alcohol Use (Questionnaire)
ALQ170Compatible with harmonization

Considering all types of alcoholic beverages, during the past 30 days, how many times did you have {5/4} or more drinks on an occasion?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020 · 2017-2020 → 2021-2023

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Confirm that the construct and coding are unchanged before pooling or recoding.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Considering all types of alcoholic beverages, during the past 30 days, how many times did you have {5/4} or more drinks on an occasion?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_ALQ — Considering all types of alcoholic beverages, during the past 30 days, how many times did you have {5/4} or more drinks on an occasion? — Alcohol Use (Questionnaire)
ALQ270Compatible with harmonization

During the past 12 months, about how often did {you/SP} have {DISPLAY NUMBER} or more drinks in a period of two hours or less?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020 · 2017-2020 → 2021-2023

Praxis harmonization actions
  • Confirm that the construct and coding are unchanged before pooling or recoding.
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • During the past 12 months, about how often did {you/SP} have {DISPLAY NUMBER} or more drinks in a period of two hours or less?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_ALQ — During the past 12 months, about how often did {you/SP} have {DISPLAY NUMBER} or more drinks in a period of two hours or less? — Alcohol Use (Questionnaire)
ALQ280Compatible with harmonization

During the past 12 months, about how often did {you/SP} have 8 or more drinks in a single day?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020 · 2017-2020 → 2021-2023

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • During the past 12 months, about how often did {you/SP} have 8 or more drinks in a single day?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_ALQ — During the past 12 months, about how often did {you/SP} have 8 or more drinks in a single day? — Alcohol Use (Questionnaire)
ALQ290Compatible with harmonization

During the past 12 months, about how often did {you/SP} have 12 or more drinks in a single day?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • During the past 12 months, about how often did {you/SP} have 12 or more drinks in a single day?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_ALQ — During the past 12 months, about how often did {you/SP} have 12 or more drinks in a single day? — Alcohol Use (Questionnaire)
AUAEARCompatible with harmonization

Which ear tested first?

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Which ear tested first?2017-2020
Cycle-by-cycle release history
AUAEXCMTCompatible with harmonization

Comment code for an Audio Exam

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Comment code for an Audio Exam2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Comment code for an Audio Exam — Audiometry (Examination)
AUAEXSTSCompatible with harmonization

Status of an Audiometry Exam

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Status of an Audiometry Exam2017-2020
Cycle-by-cycle release history
AUAFMANLCompatible with harmonization

Frequency at Which Switched From Auto to Manual Audio Testing (Left)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Frequency at Which Switched From Auto to Manual Audio Testing (Left)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Frequency at Which Switched From Auto to Manual Audio Testing (Left) — Audiometry (Examination)
AUAFMANRCompatible with harmonization

Frequency at Which Switched From Auto to Manual Audio Testing (Right)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Confirm that the construct and coding are unchanged before pooling or recoding.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Frequency at Which Switched From Auto to Manual Audio Testing (Right)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Frequency at Which Switched From Auto to Manual Audio Testing (Right) — Audiometry (Examination)
AUALEQCCompatible with harmonization

Quality Code for Tympanogram of Left Ear

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Confirm that the construct and coding are unchanged before pooling or recoding.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Quality Code for Tympanogram of Left Ear2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Quality Code for Tympanogram of Left Ear — Audiometry (Examination)
AUAMODECompatible with harmonization

Mode of Audiometric Test (Manual/Automatic/Mixed)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Mode of Audiometric Test (Manual/Automatic/Mixed)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Mode of Audiometric Test (Manual/Automatic/Mixed) — Audiometry (Examination)
AUAREQCCompatible with harmonization

Quality Code for Tympanogram of Right Ear

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Confirm that the construct and coding are unchanged before pooling or recoding.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Quality Code for Tympanogram of Right Ear2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Quality Code for Tympanogram of Right Ear — Audiometry (Examination)
AUATYMTLCompatible with harmonization

Tympanogram Type, Left Ear

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Tympanogram Type, Left Ear2017-2020
Cycle-by-cycle release history
AUATYMTRCompatible with harmonization

Tympanogram Type, Right Ear

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Tympanogram Type, Right Ear2017-2020
Cycle-by-cycle release history
AUDLOABCCompatible with harmonization

Other Exam Abnormality, Left, Comment

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Confirm that the construct and coding are unchanged before pooling or recoding.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Other Exam Abnormality, Left, Comment2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Other Exam Abnormality, Left, Comment — Audiometry (Examination)
AUDROABCCompatible with harmonization

Other Exam Abnormality, Right, Comment

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
  • Confirm that the construct and coding are unchanged before pooling or recoding.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Other Exam Abnormality, Right, Comment2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Other Exam Abnormality, Right, Comment — Audiometry (Examination)
AUQ010Compatible with harmonization

Do you now have a tube in your right or left ear? (If yes, indicate affected ear(s))

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Do you now have a tube in your right or left ear? (If yes, indicate affected ear(s))2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Do you now have a tube in your right or left ear? (If yes, indicate affected ear(s)) — Audiometry (Examination)
AUQ011Compatible with harmonization

Do you now have a tube in your right or left ear? (If yes, indicate affected ear(s))

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Do you now have a tube in your right or left ear? (If yes, indicate affected ear(s))2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Do you now have a tube in your right or left ear? (If yes, indicate affected ear(s)) — Audiometry (Examination)
AUQ020Compatible with harmonization

Have you had a cold, sinus problem, or earache in the last 24 hours?

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Have you had a cold, sinus problem, or earache in the last 24 hours?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Have you had a cold, sinus problem, or earache in the last 24 hours? — Audiometry (Examination)
AUQ020ACompatible with harmonization

Have you had a cold in the last 24 hours?

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Have you had a cold in the last 24 hours?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Have you had a cold in the last 24 hours? — Audiometry (Examination)
AUQ020BCompatible with harmonization

Have you had a sinus problem in the last 24 hours?

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Have you had a sinus problem in the last 24 hours?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Have you had a sinus problem in the last 24 hours? — Audiometry (Examination)
AUQ020CCompatible with harmonization

Have you had an earache in the right ear in the last 24 hours?

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Have you had an earache in the right ear in the last 24 hours?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Have you had an earache in the right ear in the last 24 hours? — Audiometry (Examination)
AUQ020DCompatible with harmonization

Have you had an earache in left ear in the last 24 hours?

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Have you had an earache in left ear in the last 24 hours?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Have you had an earache in left ear in the last 24 hours? — Audiometry (Examination)
AUQ020ECompatible with harmonization

Have you had an earache in both ears in the last 24 hours?

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Have you had an earache in both ears in the last 24 hours?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Have you had an earache in both ears in the last 24 hours? — Audiometry (Examination)
AUQ031Compatible with harmonization

In the past 24 hours, have you been exposed to noise so loud that you would have had to raise your voice to speak to someone an arm's length away?

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • In the past 24 hours, have you been exposed to noise so loud that you would have had to raise your voice to speak to someone an arm's length away?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — In the past 24 hours, have you been exposed to noise so loud that you would have had to raise your voice to speak to someone an arm's length away? — Audiometry (Examination)
AUQ041Compatible with harmonization

How many hours ago did the noise end?

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • How many hours ago did the noise end?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — How many hours ago did the noise end? — Audiometry (Examination)
AUQ050Compatible with harmonization

Do you hear better in one ear than the other?

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Do you hear better in one ear than the other?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Do you hear better in one ear than the other? — Audiometry (Examination)
AUQ051Compatible with harmonization

Is it easier for you to hear out of one ear than the other?

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Is it easier for you to hear out of one ear than the other?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Is it easier for you to hear out of one ear than the other? — Audiometry (Examination)
AUQ054Compatible with harmonization

These next questions are about {your/SP's} hearing. Which statement best describes {your/SP's} hearing (without a hearing aid, personal sound amplifier, or other listening devices)? Would you say {your/his/her} hearing is excellent, good, that {you have/s/he has} a little trouble, moderate trouble, a lot of trouble, or {are you/is s/he} deaf?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020 · 2017-2020 → 2021-2023

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • These next questions are about {your/SP's} hearing. Which statement best describes {your/SP's} hearing (without a hearing aid, personal sound amplifier, or other listening devices)? Would you say {your/his/her} hearing is excellent, good, that {you have/s/he has} a little trouble, moderate trouble, a lot of trouble, or {are you/is s/he} deaf?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — These next questions are about {your/SP's} hearing. Which statement best describes {your/SP's} hearing (without a hearing aid, personal sound amplifier, or other listening devices)? Would you say {your/his/her} hearing is excellent, good, that {you have/s/he has} a little trouble, moderate trouble, a lot of trouble, or {are you/is s/he} deaf? — Audiometry (Questionnaire)
AUQ060Compatible with harmonization

These next questions refer to hearing without the use of a hearing aid or any other listening devices. If {you have/SP has} one ear that is better than the other, please answer the questions for the hearing in {your/SP's} better ear. Can {you/SP} usually hear and understand what a person says without seeing his or her face if that person whispers to {you/him/her} from across a quiet room?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • These next questions refer to hearing without the use of a hearing aid or any other listening devices. If {you have/SP has} one ear that is better than the other, please answer the questions for the hearing in {your/SP's} better ear. Can {you/SP} usually hear and understand what a person says without seeing his or her face if that person whispers to {you/him/her} from across a quiet room?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — These next questions refer to hearing without the use of a hearing aid or any other listening devices. If {you have/SP has} one ear that is better than the other, please answer the questions for the hearing in {your/SP's} better ear. Can {you/SP} usually hear and understand what a person says without seeing his or her face if that person whispers to {you/him/her} from across a quiet room? — Audiometry (Questionnaire)
AUQ070Compatible with harmonization

Can {you/SP} usually hear and understand what a person says without seeing his or her face if that person talks in a normal voice to {you/him/her} from across a quiet room?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Can {you/SP} usually hear and understand what a person says without seeing his or her face if that person talks in a normal voice to {you/him/her} from across a quiet room?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — Can {you/SP} usually hear and understand what a person says without seeing his or her face if that person talks in a normal voice to {you/him/her} from across a quiet room? — Audiometry (Questionnaire)
AUQ080Compatible with harmonization

Can {you/SP} usually hear and understand what a person says without seeing his or her face if that person shouts to {you/him/her} from across a quiet room?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Can {you/SP} usually hear and understand what a person says without seeing his or her face if that person shouts to {you/him/her} from across a quiet room?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — Can {you/SP} usually hear and understand what a person says without seeing his or her face if that person shouts to {you/him/her} from across a quiet room? — Audiometry (Questionnaire)
AUQ090Compatible with harmonization

Can{you/SP} usually hear and understand what a person says without seeing his or her face if that person speaks loudly into {your/his/her} better ear?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Can{you/SP} usually hear and understand what a person says without seeing his or her face if that person speaks loudly into {your/his/her} better ear?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — Can{you/SP} usually hear and understand what a person says without seeing his or her face if that person speaks loudly into {your/his/her} better ear? — Audiometry (Questionnaire)
AUQ101Compatible with harmonization

How often {do you/does SP} have difficulty hearing and understanding if there is background noise, for example, when other people are talking, TV or radio is on, or children are playing? Would you say...

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020 · 2017-2020 → 2021-2023

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • How often {do you/does SP} have difficulty hearing and understanding if there is background noise, for example, when other people are talking, TV or radio is on, or children are playing? Would you say...2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — How often {do you/does SP} have difficulty hearing and understanding if there is background noise, for example, when other people are talking, TV or radio is on, or children are playing? Would you say... — Audiometry (Questionnaire)
AUQ110Compatible with harmonization

How often does {your/SP's} hearing cause {you/him/her}to feel frustrated when talking to members of {your/his/her} family or to friends? Would you say...

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Confirm that the construct and coding are unchanged before pooling or recoding.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • How often does {your/SP's} hearing cause {you/him/her}to feel frustrated when talking to members of {your/his/her} family or to friends? Would you say...2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — How often does {your/SP's} hearing cause {you/him/her}to feel frustrated when talking to members of {your/his/her} family or to friends? Would you say... — Audiometry (Questionnaire)
AUQ139Compatible with harmonization

{Have you/Has SP} ever had a tube placed in {your/his/her} ear to drain the fluid from {your/his/her} ear or to treat ear infections?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • {Have you/Has SP} ever had a tube placed in {your/his/her} ear to drain the fluid from {your/his/her} ear or to treat ear infections?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — {Have you/Has SP} ever had a tube placed in {your/his/her} ear to drain the fluid from {your/his/her} ear or to treat ear infections? — Audiometry (Questionnaire)
AUQ144Compatible with harmonization

A hearing test by a specialist is one that is done in a sound proof booth or room, or with headphones. Hearing specialists include audiologists, ear nose and throat doctors, and trained technicians or occupational nurses. When was the last time {you /SP} had {your/his/her} hearing tested by a hearing specialist?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020 · 2017-2020 → 2021-2023

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • A hearing test by a specialist is one that is done in a sound proof booth or room, or with headphones. Hearing specialists include audiologists, ear nose and throat doctors, and trained technicians or occupational nurses. When was the last time {you /SP} had {your/his/her} hearing tested by a hearing specialist?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — A hearing test by a specialist is one that is done in a sound proof booth or room, or with headphones. Hearing specialists include audiologists, ear nose and throat doctors, and trained technicians or occupational nurses. When was the last time {you /SP} had {your/his/her} hearing tested by a hearing specialist? — Audiometry (Questionnaire)
AUQ147Compatible with harmonization

{Do you/Does SP} now wear or use a hearing aid, a personal sound amplifier, or cochlear implant?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • {Do you/Does SP} now wear or use a hearing aid, a personal sound amplifier, or cochlear implant?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — {Do you/Does SP} now wear or use a hearing aid, a personal sound amplifier, or cochlear implant? — Audiometry (Questionnaire)
AUQ149aCompatible with harmonization

Which was it?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Which was it?2017-2020
Cycle-by-cycle release history
AUQ149bCompatible with harmonization

Which was it?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Which was it?2017-2020
Cycle-by-cycle release history
AUQ149cCompatible with harmonization

Which was it?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Which was it?2017-2020
Cycle-by-cycle release history
AUQ153Compatible with harmonization

In the past 2 weeks, how often {have you/has SP} worn a {hearing aid and/or personal sound amplifier and/or cochlear implant}? If unsure, provide your best estimate of the average amount of time {you have/he has/she has} worn {your/his/her} {hearing aid, and/or personal sound amplifier, and/or cochlear implant}.

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • In the past 2 weeks, how often {have you/has SP} worn a {hearing aid and/or personal sound amplifier and/or cochlear implant}? If unsure, provide your best estimate of the average amount of time {you have/he has/she has} worn {your/his/her} {hearing aid, and/or personal sound amplifier, and/or cochlear implant}.2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — In the past 2 weeks, how often {have you/has SP} worn a {hearing aid and/or personal sound amplifier and/or cochlear implant}? If unsure, provide your best estimate of the average amount of time {you have/he has/she has} worn {your/his/her} {hearing aid, and/or personal sound amplifier, and/or cochlear implant}. — Audiometry (Questionnaire)
AUQ156Compatible with harmonization

Because of hearing loss, {have you/has SP} ever used any of the following to improve {your/his/her} communication: FM systems, closed-captioned television, instant or text messages, live video streaming, amplified telephone, relay services, or a sign-language interpreter?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Because of hearing loss, {have you/has SP} ever used any of the following to improve {your/his/her} communication: FM systems, closed-captioned television, instant or text messages, live video streaming, amplified telephone, relay services, or a sign-language interpreter?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — Because of hearing loss, {have you/has SP} ever used any of the following to improve {your/his/her} communication: FM systems, closed-captioned television, instant or text messages, live video streaming, amplified telephone, relay services, or a sign-language interpreter? — Audiometry (Questionnaire)
AUQ191Compatible with harmonization

In the past 12 months, {have you/has SP} been bothered by ringing, roaring, or buzzing in {your/his/her} ears or head that lasts for 5 minutes or more?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Confirm that the construct and coding are unchanged before pooling or recoding.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • In the past 12 months, {have you/has SP} been bothered by ringing, roaring, or buzzing in {your/his/her} ears or head that lasts for 5 minutes or more?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — In the past 12 months, {have you/has SP} been bothered by ringing, roaring, or buzzing in {your/his/her} ears or head that lasts for 5 minutes or more? — Audiometry (Questionnaire)
AUQ250Compatible with harmonization

How long {have you/has SP} been bothered by this ringing, roaring, or buzzing in {your/his/her} ears or head?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Confirm that the construct and coding are unchanged before pooling or recoding.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • How long {have you/has SP} been bothered by this ringing, roaring, or buzzing in {your/his/her} ears or head?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — How long {have you/has SP} been bothered by this ringing, roaring, or buzzing in {your/his/her} ears or head? — Audiometry (Questionnaire)
AUQ255Compatible with harmonization

In the past 12 months, how often {have you/has SP} had this ringing, roaring, or buzzing in {your/his/her} ears or head? Would you say...

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • In the past 12 months, how often {have you/has SP} had this ringing, roaring, or buzzing in {your/his/her} ears or head? Would you say...2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — In the past 12 months, how often {have you/has SP} had this ringing, roaring, or buzzing in {your/his/her} ears or head? Would you say... — Audiometry (Questionnaire)
AUQ260Compatible with harmonization

{Are you/Is SP} bothered by ringing, roaring, or buzzing in {your/his/her} ears or head only after listening to loud sounds or loud music?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • {Are you/Is SP} bothered by ringing, roaring, or buzzing in {your/his/her} ears or head only after listening to loud sounds or loud music?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — {Are you/Is SP} bothered by ringing, roaring, or buzzing in {your/his/her} ears or head only after listening to loud sounds or loud music? — Audiometry (Questionnaire)
AUQ270Compatible with harmonization

{Are you/Is SP} bothered by ringing, roaring, or buzzing in {your/his/her} ears or head when going to sleep?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Confirm that the construct and coding are unchanged before pooling or recoding.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • {Are you/Is SP} bothered by ringing, roaring, or buzzing in {your/his/her} ears or head when going to sleep?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — {Are you/Is SP} bothered by ringing, roaring, or buzzing in {your/his/her} ears or head when going to sleep? — Audiometry (Questionnaire)
AUQ280Compatible with harmonization

How much of a problem is this ringing, roaring, or buzzing in {your/his/her} ears or head? Would you say...

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • How much of a problem is this ringing, roaring, or buzzing in {your/his/her} ears or head? Would you say...2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — How much of a problem is this ringing, roaring, or buzzing in {your/his/her} ears or head? Would you say... — Audiometry (Questionnaire)
AUQ300Compatible with harmonization

This next question is about {your/SP's} use of firearms that {you/he/she} may have used for target shooting, hunting, for {your/his/her} job or in military service. {Have you/Has SP} ever used firearms for any reason?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • This next question is about {your/SP's} use of firearms that {you/he/she} may have used for target shooting, hunting, for {your/his/her} job or in military service. {Have you/Has SP} ever used firearms for any reason?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — This next question is about {your/SP's} use of firearms that {you/he/she} may have used for target shooting, hunting, for {your/his/her} job or in military service. {Have you/Has SP} ever used firearms for any reason? — Audiometry (Questionnaire)
AUQ310Compatible with harmonization

How many total rounds {have you/has SP} ever fired?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • How many total rounds {have you/has SP} ever fired?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — How many total rounds {have you/has SP} ever fired? — Audiometry (Questionnaire)
AUQ320Compatible with harmonization

How often {did you/did SP} wear hearing protection devices (ear plugs, ear muffs) when shooting firearms?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • How often {did you/did SP} wear hearing protection devices (ear plugs, ear muffs) when shooting firearms?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — How often {did you/did SP} wear hearing protection devices (ear plugs, ear muffs) when shooting firearms? — Audiometry (Questionnaire)
AUQ330Compatible with harmonization

These next questions are about noise exposure {you/SP} may have had at work. {Have you/Has SP} ever had a job, or combination of jobs where {you were/s/he was} exposed to loud sounds or noise for 4 or more hours a day, several days a week? (Loud means so loud that {you/s/he} must speak in a raised voice to be heard.)

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2011-2012 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Confirm that the construct and coding are unchanged before pooling or recoding.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • These next questions are about noise exposure {you/SP} may have had at work. {Have you/Has SP} ever had a job, or combination of jobs where {you were/s/he was} exposed to loud sounds or noise for 4 or more hours a day, several days a week? (Loud means so loud that {you/s/he} must speak in a raised voice to be heard.)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — These next questions are about noise exposure {you/SP} may have had at work. {Have you/Has SP} ever had a job, or combination of jobs where {you were/s/he was} exposed to loud sounds or noise for 4 or more hours a day, several days a week? (Loud means so loud that {you/s/he} must speak in a raised voice to be heard.) — Audiometry (Questionnaire)
AUQ340Compatible with harmonization

For how many months or years {have you/has SP} been exposed at work to loud sounds or noise for 4 or more hours a day, several days a week?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Confirm that the construct and coding are unchanged before pooling or recoding.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • For how many months or years {have you/has SP} been exposed at work to loud sounds or noise for 4 or more hours a day, several days a week?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — For how many months or years {have you/has SP} been exposed at work to loud sounds or noise for 4 or more hours a day, several days a week? — Audiometry (Questionnaire)
AUQ350Compatible with harmonization

In {your/SP's} work {were you/was he/was she} exposed to very loud noise? (Very loud noise is noise that is so loud {you have/he has/she has} to shout in order to be understood by someone standing 3 feet away from {you/him/her}.)

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Confirm that the construct and coding are unchanged before pooling or recoding.
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • In {your/SP's} work {were you/was he/was she} exposed to very loud noise? (Very loud noise is noise that is so loud {you have/he has/she has} to shout in order to be understood by someone standing 3 feet away from {you/him/her}.)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — In {your/SP's} work {were you/was he/was she} exposed to very loud noise? (Very loud noise is noise that is so loud {you have/he has/she has} to shout in order to be understood by someone standing 3 feet away from {you/him/her}.) — Audiometry (Questionnaire)
AUQ360Compatible with harmonization

This next question is about {your/SP's} work in jobs where there was very loud noise for 4 or more hours a day, several days a week. Please give me the total number of months or years for all jobs where this has happened.

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2011-2012 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • This next question is about {your/SP's} work in jobs where there was very loud noise for 4 or more hours a day, several days a week. Please give me the total number of months or years for all jobs where this has happened.2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — This next question is about {your/SP's} work in jobs where there was very loud noise for 4 or more hours a day, several days a week. Please give me the total number of months or years for all jobs where this has happened. — Audiometry (Questionnaire)
AUQ370Compatible with harmonization

Outside of a job, {have you/has SP} ever been exposed to very loud noise or music for 10 or more hours a week? This is noise so loud that {you have/s/he has} to shout to be understood or heard 3 feet away. Examples are noise from power tools, lawn mowers, farm machinery, cars, trucks, motorcycles, motor boats or loud music.

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Outside of a job, {have you/has SP} ever been exposed to very loud noise or music for 10 or more hours a week? This is noise so loud that {you have/s/he has} to shout to be understood or heard 3 feet away. Examples are noise from power tools, lawn mowers, farm machinery, cars, trucks, motorcycles, motor boats or loud music.2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — Outside of a job, {have you/has SP} ever been exposed to very loud noise or music for 10 or more hours a week? This is noise so loud that {you have/s/he has} to shout to be understood or heard 3 feet away. Examples are noise from power tools, lawn mowers, farm machinery, cars, trucks, motorcycles, motor boats or loud music. — Audiometry (Questionnaire)
AUQ380Compatible with harmonization

In the past 12 months, how often did {you/SP} wear hearing protection devices (ear plugs, ear muffs) when exposed to very loud sounds or noise?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2011-2012 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • In the past 12 months, how often did {you/SP} wear hearing protection devices (ear plugs, ear muffs) when exposed to very loud sounds or noise?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — In the past 12 months, how often did {you/SP} wear hearing protection devices (ear plugs, ear muffs) when exposed to very loud sounds or noise? — Audiometry (Questionnaire)
AUQ400Compatible with harmonization

How old {were you/was SP} when {you/he/she} began to have any hearing loss?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • How old {were you/was SP} when {you/he/she} began to have any hearing loss?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — How old {were you/was SP} when {you/he/she} began to have any hearing loss? — Audiometry (Questionnaire)
AUQ410aCompatible with harmonization

What are the main causes of {your/SP's} hearing loss?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020 · 2017-2020 → 2021-2023

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • What are the main causes of {your/SP's} hearing loss?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — What are the main causes of {your/SP's} hearing loss? — Audiometry (Questionnaire)
AUQ410bCompatible with harmonization

What are the main causes of {your/SP's} hearing loss?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020 · 2017-2020 → 2021-2023

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • What are the main causes of {your/SP's} hearing loss?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — What are the main causes of {your/SP's} hearing loss? — Audiometry (Questionnaire)
AUQ410cCompatible with harmonization

What are the main causes of {your/SP's} hearing loss?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020 · 2017-2020 → 2021-2023

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • What are the main causes of {your/SP's} hearing loss?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — What are the main causes of {your/SP's} hearing loss? — Audiometry (Questionnaire)
AUQ410dCompatible with harmonization

What are the main causes of {your/SP's} hearing loss?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020 · 2017-2020 → 2021-2023

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • What are the main causes of {your/SP's} hearing loss?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — What are the main causes of {your/SP's} hearing loss? — Audiometry (Questionnaire)
AUQ410eCompatible with harmonization

What are the main causes of {your/SP's} hearing loss?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020 · 2017-2020 → 2021-2023

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • What are the main causes of {your/SP's} hearing loss?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — What are the main causes of {your/SP's} hearing loss? — Audiometry (Questionnaire)
AUQ410fCompatible with harmonization

What are the main causes of {your/SP's} hearing loss?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020 · 2017-2020 → 2021-2023

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • What are the main causes of {your/SP's} hearing loss?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — What are the main causes of {your/SP's} hearing loss? — Audiometry (Questionnaire)
AUQ410gCompatible with harmonization

What are the main causes of {your/SP's} hearing loss?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020 · 2017-2020 → 2021-2023

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • What are the main causes of {your/SP's} hearing loss?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — What are the main causes of {your/SP's} hearing loss? — Audiometry (Questionnaire)
AUQ410hCompatible with harmonization

What are the main causes of {your/SP's} hearing loss?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020 · 2017-2020 → 2021-2023

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • What are the main causes of {your/SP's} hearing loss?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — What are the main causes of {your/SP's} hearing loss? — Audiometry (Questionnaire)
AUQ410iCompatible with harmonization

What are the main causes of {your/SP's} hearing loss?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020 · 2017-2020 → 2021-2023

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • What are the main causes of {your/SP's} hearing loss?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — What are the main causes of {your/SP's} hearing loss? — Audiometry (Questionnaire)
AUQ410jCompatible with harmonization

What are the main causes of {your/SP's} hearing loss?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020 · 2017-2020 → 2021-2023

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • What are the main causes of {your/SP's} hearing loss?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — What are the main causes of {your/SP's} hearing loss? — Audiometry (Questionnaire)
AUQ420Compatible with harmonization

{Have you/Has SP} ever had ear infections or earaches?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • {Have you/Has SP} ever had ear infections or earaches?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — {Have you/Has SP} ever had ear infections or earaches? — Audiometry (Questionnaire)
AUQ430Compatible with harmonization

{Have you/Has SP} ever had 3 or more ear infections or earaches?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • {Have you/Has SP} ever had 3 or more ear infections or earaches?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — {Have you/Has SP} ever had 3 or more ear infections or earaches? — Audiometry (Questionnaire)
AUQ440Compatible with harmonization

Has SP ever received Special Education or Early Intervention Services for speech-language, reading, hearing or listening skills, intellectual disability, movement or mobility difficulties (e.g., using arms or legs), or other developmental or disability problems?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Has SP ever received Special Education or Early Intervention Services for speech-language, reading, hearing or listening skills, intellectual disability, movement or mobility difficulties (e.g., using arms or legs), or other developmental or disability problems?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — Has SP ever received Special Education or Early Intervention Services for speech-language, reading, hearing or listening skills, intellectual disability, movement or mobility difficulties (e.g., using arms or legs), or other developmental or disability problems? — Audiometry (Questionnaire)
AUQ450aCompatible with harmonization

Which was it?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Which was it?2017-2020
Cycle-by-cycle release history
AUQ450bCompatible with harmonization

Which was it?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Which was it?2017-2020
Cycle-by-cycle release history
AUQ450cCompatible with harmonization

Which was it?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Which was it?2017-2020
Cycle-by-cycle release history
AUQ450dCompatible with harmonization

Which was it?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Which was it?2017-2020
Cycle-by-cycle release history
AUQ450eCompatible with harmonization

Which was it?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Which was it?2017-2020
Cycle-by-cycle release history
AUQ450fCompatible with harmonization

Which was it?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Which was it?2017-2020
Cycle-by-cycle release history
AUQ460Compatible with harmonization

Has SP ever been exposed to very loud noise or music for 10 or more hours a week for a period of 3 months or longer? This is noise so loud {he/she has} to shout to be understood or heard 3 feet away.

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Has SP ever been exposed to very loud noise or music for 10 or more hours a week for a period of 3 months or longer? This is noise so loud {he/she has} to shout to be understood or heard 3 feet away.2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — Has SP ever been exposed to very loud noise or music for 10 or more hours a week for a period of 3 months or longer? This is noise so loud {he/she has} to shout to be understood or heard 3 feet away. — Audiometry (Questionnaire)
AUQ470Compatible with harmonization

How long has SP been exposed to very loud noise or music for 10 or more hours a week? This is noise so loud that {he/she has} to shout to be understood or heard 3 feet away.

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • How long has SP been exposed to very loud noise or music for 10 or more hours a week? This is noise so loud that {he/she has} to shout to be understood or heard 3 feet away.2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — How long has SP been exposed to very loud noise or music for 10 or more hours a week? This is noise so loud that {he/she has} to shout to be understood or heard 3 feet away. — Audiometry (Questionnaire)
AUQ480Compatible with harmonization

How often does {your/SP's} hearing cause {you/him/her} to avoid groups of people, limiting or hampering {your/his/her} personal or social life? Would you say...

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • How often does {your/SP's} hearing cause {you/him/her} to avoid groups of people, limiting or hampering {your/his/her} personal or social life? Would you say...2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — How often does {your/SP's} hearing cause {you/him/her} to avoid groups of people, limiting or hampering {your/his/her} personal or social life? Would you say... — Audiometry (Questionnaire)
AUQ490Compatible with harmonization

During the past 12 months, {have you/has SP} had a problem with dizziness, lightheadedness, feeling as if {you are/s/he is} going to pass out or faint, unsteadiness or imbalance?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • During the past 12 months, {have you/has SP} had a problem with dizziness, lightheadedness, feeling as if {you are/s/he is} going to pass out or faint, unsteadiness or imbalance?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — During the past 12 months, {have you/has SP} had a problem with dizziness, lightheadedness, feeling as if {you are/s/he is} going to pass out or faint, unsteadiness or imbalance? — Audiometry (Questionnaire)
AUQ500Compatible with harmonization

{Have you/Has SP} ever discussed this ringing, roaring, or buzzing in {your/his/her} ears or head with {your/his/her} doctor or other health care professional?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • {Have you/Has SP} ever discussed this ringing, roaring, or buzzing in {your/his/her} ears or head with {your/his/her} doctor or other health care professional?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — {Have you/Has SP} ever discussed this ringing, roaring, or buzzing in {your/his/her} ears or head with {your/his/her} doctor or other health care professional? — Audiometry (Questionnaire)
AUQ510Compatible with harmonization

How long {have you/has SP} been exposed to very loud noise or music for 10 or more hours a week? This is noise so loud that {you have/s/he has} to shout to be understood or heard 3 feet away.

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • How long {have you/has SP} been exposed to very loud noise or music for 10 or more hours a week? This is noise so loud that {you have/s/he has} to shout to be understood or heard 3 feet away.2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — How long {have you/has SP} been exposed to very loud noise or music for 10 or more hours a week? This is noise so loud that {you have/s/he has} to shout to be understood or heard 3 feet away. — Audiometry (Questionnaire)
AUQ520Compatible with harmonization

In the past 24 hours, have you listened to music with earphones?

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • In the past 24 hours, have you listened to music with earphones?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — In the past 24 hours, have you listened to music with earphones? — Audiometry (Examination)
AUQ530Compatible with harmonization

How many hours ago did you stop listening?

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • How many hours ago did you stop listening?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — How many hours ago did you stop listening? — Audiometry (Examination)
AUQ540Compatible with harmonization

Do you have a cold, runny nose, or earache today?

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Do you have a cold, runny nose, or earache today?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Do you have a cold, runny nose, or earache today? — Audiometry (Examination)
AUQ550Compatible with harmonization

Did you have a cold, runny nose, or earache yesterday?

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Did you have a cold, runny nose, or earache yesterday?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Did you have a cold, runny nose, or earache yesterday? — Audiometry (Examination)
AUQ550ACompatible with harmonization

Have you had a cold today or yesterday?

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Have you had a cold today or yesterday?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Have you had a cold today or yesterday? — Audiometry (Examination)
AUQ550BCompatible with harmonization

Have you had runny nose today or yesterday?

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Have you had runny nose today or yesterday?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Have you had runny nose today or yesterday? — Audiometry (Examination)
AUQ550CCompatible with harmonization

Have you had an earache in right ear today or yesterday?

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Have you had an earache in right ear today or yesterday?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Have you had an earache in right ear today or yesterday? — Audiometry (Examination)
AUQ550DCompatible with harmonization

Have you had an earache in left ear today or yesterday?

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Have you had an earache in left ear today or yesterday?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Have you had an earache in left ear today or yesterday? — Audiometry (Examination)
AUQ550ECompatible with harmonization

Have you had an earache in both ears today or yesterday?

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Have you had an earache in both ears today or yesterday?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Have you had an earache in both ears today or yesterday? — Audiometry (Examination)
AUQ560Compatible with harmonization

Have you listened to sounds today that were so loud you would have to shout so someone close by could hear you?

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Have you listened to sounds today that were so loud you would have to shout so someone close by could hear you?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Have you listened to sounds today that were so loud you would have to shout so someone close by could hear you? — Audiometry (Examination)
AUQ570Compatible with harmonization

Did you listen to any sounds that were that loud yesterday?

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Did you listen to any sounds that were that loud yesterday?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Did you listen to any sounds that were that loud yesterday? — Audiometry (Examination)
AUQ580Compatible with harmonization

When was that?

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • When was that?2017-2020
Cycle-by-cycle release history
AUQ590Compatible with harmonization

Have you listened to music with earphones today?

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Have you listened to music with earphones today?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Have you listened to music with earphones today? — Audiometry (Examination)
AUQ600Compatible with harmonization

Did you listen to music with earphones yesterday?

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Did you listen to music with earphones yesterday?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Did you listen to music with earphones yesterday? — Audiometry (Examination)
AUQ610Compatible with harmonization

When was that?

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • When was that?2017-2020
Cycle-by-cycle release history
AUQ630Compatible with harmonization

{Have you/Has SP} ever worn or used a hearing aid, a personal sound amplifier, or cochlear implant in the past?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • {Have you/Has SP} ever worn or used a hearing aid, a personal sound amplifier, or cochlear implant in the past?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUQ — {Have you/Has SP} ever worn or used a hearing aid, a personal sound amplifier, or cochlear implant in the past? — Audiometry (Questionnaire)
AUXLOABNCompatible with harmonization

Other Exam Abnormality, Left Ear

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Other Exam Abnormality, Left Ear2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Other Exam Abnormality, Left Ear — Audiometry (Examination)
AUXLOCOLCompatible with harmonization

Collapsing Ear Canal, Left Ear

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Collapsing Ear Canal, Left Ear2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Collapsing Ear Canal, Left Ear — Audiometry (Examination)
AUXLOEXCCompatible with harmonization

Excessive Cerumen, Left Ear

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Excessive Cerumen, Left Ear2017-2020
Cycle-by-cycle release history
AUXLOIMCCompatible with harmonization

Impacted Cerumen, Left Ear

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Impacted Cerumen, Left Ear2017-2020
Cycle-by-cycle release history
AUXOTSPLCompatible with harmonization

Normal: Left Ear Otoscopy

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Normal: Left Ear Otoscopy2017-2020
Cycle-by-cycle release history
AUXR1K1LCompatible with harmonization

Left retest threshold @ 1000Hz in decibels (Hearing Level)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Left retest threshold @ 1000Hz in decibels (Hearing Level)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Left retest threshold @ 1000Hz in decibels (Hearing Level) — Audiometry (Examination)
AUXR1K1RCompatible with harmonization

Right retest threshold @ 1000Hz in decibels (Hearing Level)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Right retest threshold @ 1000Hz in decibels (Hearing Level)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Right retest threshold @ 1000Hz in decibels (Hearing Level) — Audiometry (Examination)
AUXR1K2LCompatible with harmonization

Left retest threshold @ 1000Hz, (second reading) in decibels (Hearing Level)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Confirm that the construct and coding are unchanged before pooling or recoding.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Left retest threshold @ 1000Hz, (second reading) in decibels (Hearing Level)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Left retest threshold @ 1000Hz, (second reading) in decibels (Hearing Level) — Audiometry (Examination)
AUXR1K2RCompatible with harmonization

Right retest threshold @ 1000Hz, (second reading) in decibels (Hearing Level)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Right retest threshold @ 1000Hz, (second reading) in decibels (Hearing Level)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Right retest threshold @ 1000Hz, (second reading) in decibels (Hearing Level) — Audiometry (Examination)
AUXR2KLCompatible with harmonization

Left retest threshold @ 2000Hz in decibels (Hearing Level)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Left retest threshold @ 2000Hz in decibels (Hearing Level)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Left retest threshold @ 2000Hz in decibels (Hearing Level) — Audiometry (Examination)
AUXR2KRCompatible with harmonization

Right retest threshold @ 2000Hz in decibels (Hearing Level)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Right retest threshold @ 2000Hz in decibels (Hearing Level)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Right retest threshold @ 2000Hz in decibels (Hearing Level) — Audiometry (Examination)
AUXR3KLCompatible with harmonization

Left retest threshold @ 3000Hz in decibels (Hearing Level)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Left retest threshold @ 3000Hz in decibels (Hearing Level)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Left retest threshold @ 3000Hz in decibels (Hearing Level) — Audiometry (Examination)
AUXR3KRCompatible with harmonization

Right retest threshold @ 3000Hz in decibels (Hearing Level)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Right retest threshold @ 3000Hz in decibels (Hearing Level)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Right retest threshold @ 3000Hz in decibels (Hearing Level) — Audiometry (Examination)
AUXR4KLCompatible with harmonization

Left retest threshold @ 4000Hz in decibels (Hearing Level)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Left retest threshold @ 4000Hz in decibels (Hearing Level)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Left retest threshold @ 4000Hz in decibels (Hearing Level) — Audiometry (Examination)
AUXR4KRCompatible with harmonization

Right retest threshold @ 4000Hz in decibels (Hearing Level)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Right retest threshold @ 4000Hz in decibels (Hearing Level)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Right retest threshold @ 4000Hz in decibels (Hearing Level) — Audiometry (Examination)
AUXR5CLCompatible with harmonization

Left retest threshold @ 500Hz in decibels (Hearing Level)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Left retest threshold @ 500Hz in decibels (Hearing Level)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Left retest threshold @ 500Hz in decibels (Hearing Level) — Audiometry (Examination)
AUXR5CRCompatible with harmonization

Right retest threshold @ 500Hz in decibels (Hearing Level)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Right retest threshold @ 500Hz in decibels (Hearing Level)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Right retest threshold @ 500Hz in decibels (Hearing Level) — Audiometry (Examination)
AUXR6KLCompatible with harmonization

Left retest threshold @ 6000Hz in decibels (Hearing Level)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Left retest threshold @ 6000Hz in decibels (Hearing Level)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Left retest threshold @ 6000Hz in decibels (Hearing Level) — Audiometry (Examination)
AUXR6KRCompatible with harmonization

Right retest threshold @ 6000Hz in decibels (Hearing Level)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Right retest threshold @ 6000Hz in decibels (Hearing Level)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Right retest threshold @ 6000Hz in decibels (Hearing Level) — Audiometry (Examination)
AUXR8KLCompatible with harmonization

Left retest threshold @ 8000Hz in decibels (Hearing Level)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Left retest threshold @ 8000Hz in decibels (Hearing Level)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Left retest threshold @ 8000Hz in decibels (Hearing Level) — Audiometry (Examination)
AUXR8KRCompatible with harmonization

Right retest threshold @ 8000Hz in decibels (Hearing Level)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Right retest threshold @ 8000Hz in decibels (Hearing Level)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Right retest threshold @ 8000Hz in decibels (Hearing Level) — Audiometry (Examination)
AUXROABNCompatible with harmonization

Other Exam Abnormality, Right Ear

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Other Exam Abnormality, Right Ear2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Other Exam Abnormality, Right Ear — Audiometry (Examination)
AUXROCOLCompatible with harmonization

Collapsing Ear Canal, Right Ear

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Collapsing Ear Canal, Right Ear2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Collapsing Ear Canal, Right Ear — Audiometry (Examination)
AUXROEXCCompatible with harmonization

Excessive Cerumen, Right Ear

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Excessive Cerumen, Right Ear2017-2020
Cycle-by-cycle release history
AUXROIMCCompatible with harmonization

Impacted Cerumen, Right Ear

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Impacted Cerumen, Right Ear2017-2020
Cycle-by-cycle release history
AUXROTSPCompatible with harmonization

Normal: Right Ear Otoscopy

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Normal: Right Ear Otoscopy2017-2020
Cycle-by-cycle release history
AUXTCOMLCompatible with harmonization

Compliance (tympanometry), left ear

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Compliance (tympanometry), left ear2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Compliance (tympanometry), left ear — Audiometry (Examination)
AUXTCOMRCompatible with harmonization

Compliance (tympanometry), right ear

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Compliance (tympanometry), right ear2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Compliance (tympanometry), right ear — Audiometry (Examination)
AUXTMEPLCompatible with harmonization

Middle ear pressure (tympanometry), left ear, in daPa (dekaPascals)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Confirm that the construct and coding are unchanged before pooling or recoding.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Middle ear pressure (tympanometry), left ear, in daPa (dekaPascals)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Middle ear pressure (tympanometry), left ear, in daPa (dekaPascals) — Audiometry (Examination)
AUXTMEPRCompatible with harmonization

Middle ear pressure (tympanometry), right ear, in daPa (dekaPascals)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Middle ear pressure (tympanometry), right ear, in daPa (dekaPascals)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Middle ear pressure (tympanometry), right ear, in daPa (dekaPascals) — Audiometry (Examination)
AUXTPVLCompatible with harmonization

Physical volume (tympanometry), left ear, in cc

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Physical volume (tympanometry), left ear, in cc2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Physical volume (tympanometry), left ear, in cc — Audiometry (Examination)
AUXTPVRCompatible with harmonization

Physical volume (tympanometry), right ear, in cc

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Physical volume (tympanometry), right ear, in cc2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Physical volume (tympanometry), right ear, in cc — Audiometry (Examination)
AUXTWIDLCompatible with harmonization

Tympanometric width, left ear

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Tympanometric width, left ear2017-2020
Cycle-by-cycle release history
AUXTWIDRCompatible with harmonization

Tympanometric width, right ear

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Tympanometric width, right ear2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Tympanometric width, right ear — Audiometry (Examination)
AUXU1K1LCompatible with harmonization

Left threshold @ 1000Hz in decibels (Hearing Level)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Left threshold @ 1000Hz in decibels (Hearing Level)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Left threshold @ 1000Hz in decibels (Hearing Level) — Audiometry (Examination)
AUXU1K1RCompatible with harmonization

Right threshold @ 1000Hz in decibels (Hearing Level)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Right threshold @ 1000Hz in decibels (Hearing Level)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Right threshold @ 1000Hz in decibels (Hearing Level) — Audiometry (Examination)
AUXU1K2LCompatible with harmonization

Left threshold @ 1000Hz (second reading) in decibels (Hearing Level)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Left threshold @ 1000Hz (second reading) in decibels (Hearing Level)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Left threshold @ 1000Hz (second reading) in decibels (Hearing Level) — Audiometry (Examination)
AUXU1K2RCompatible with harmonization

Right threshold @ 1000Hz (second reading) in decibels (Hearing Level)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Right threshold @ 1000Hz (second reading) in decibels (Hearing Level)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Right threshold @ 1000Hz (second reading) in decibels (Hearing Level) — Audiometry (Examination)
AUXU2KLCompatible with harmonization

Left threshold @ 2000Hz in decibels (Hearing Level)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Left threshold @ 2000Hz in decibels (Hearing Level)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Left threshold @ 2000Hz in decibels (Hearing Level) — Audiometry (Examination)
AUXU2KRCompatible with harmonization

Right threshold @ 2000Hz in decibels (Hearing Level)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Right threshold @ 2000Hz in decibels (Hearing Level)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Right threshold @ 2000Hz in decibels (Hearing Level) — Audiometry (Examination)
AUXU3KLCompatible with harmonization

Left threshold @ 3000Hz in decibels (Hearing Level)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Left threshold @ 3000Hz in decibels (Hearing Level)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Left threshold @ 3000Hz in decibels (Hearing Level) — Audiometry (Examination)
AUXU3KRCompatible with harmonization

Right threshold @ 3000Hz in decibels (Hearing Levels)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Right threshold @ 3000Hz in decibels (Hearing Levels)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Right threshold @ 3000Hz in decibels (Hearing Levels) — Audiometry (Examination)
AUXU4KLCompatible with harmonization

Left threshold @ 4000Hz in decibels (Hearing Level)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Left threshold @ 4000Hz in decibels (Hearing Level)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Left threshold @ 4000Hz in decibels (Hearing Level) — Audiometry (Examination)
AUXU4KRCompatible with harmonization

Right threshold @ 4000Hz in decibels (Hearing Level)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Right threshold @ 4000Hz in decibels (Hearing Level)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Right threshold @ 4000Hz in decibels (Hearing Level) — Audiometry (Examination)
AUXU500LCompatible with harmonization

Left threshold @ 500Hz in decibels (Hearing Level)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Left threshold @ 500Hz in decibels (Hearing Level)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Left threshold @ 500Hz in decibels (Hearing Level) — Audiometry (Examination)
AUXU500RCompatible with harmonization

Right threshold @ 500Hz in decibels (Hearing Level)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Right threshold @ 500Hz in decibels (Hearing Level)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Right threshold @ 500Hz in decibels (Hearing Level) — Audiometry (Examination)
AUXU6KLCompatible with harmonization

Left threshold @ 6000Hz in decibels (Hearing Level)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Left threshold @ 6000Hz in decibels (Hearing Level)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Left threshold @ 6000Hz in decibels (Hearing Level) — Audiometry (Examination)
AUXU6KRCompatible with harmonization

Right threshold @ 6000Hz in decibels (Hearing Level)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
  • Review the adjacent codebooks/methods. Keep this boundary as documentation variation unless source evidence confirms a substantive method or instrument change.
  • Apply cycle-specific eligibility rules and restrict the pooled analytic population to a defensible common target population.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Right threshold @ 6000Hz in decibels (Hearing Level)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Right threshold @ 6000Hz in decibels (Hearing Level) — Audiometry (Examination)
AUXU8KLIndexed code and label stable

Left threshold @ 8000Hz in decibels (Hearing Level)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Left threshold @ 8000Hz in decibels (Hearing Level)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Left threshold @ 8000Hz in decibels (Hearing Level) — Audiometry (Examination)
AUXU8KRIndexed code and label stable

Right threshold @ 8000Hz in decibels (Hearing Level)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Right threshold @ 8000Hz in decibels (Hearing Level)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_AUX — Right threshold @ 8000Hz in decibels (Hearing Level) — Audiometry (Examination)
BMDBMICIndexed code and label stable

BMI Category - Children/Youth

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • BMI Category - Children/Youth2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_BMX — BMI Category - Children/Youth — Body Measures (Examination)
BMDSTATSIndexed code and label stable

Body Measures Component status Code

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Body Measures Component status Code2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_BMX — Body Measures Component status Code — Body Measures (Examination)
BMIARMCIndexed code and label stable

Arm Circumference Comment

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Arm Circumference Comment2017-2020
Cycle-by-cycle release history
BMIARMLIndexed code and label stable

Upper Arm Length Comment

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Upper Arm Length Comment2017-2020
Cycle-by-cycle release history
BMIHEADIndexed code and label stable

Head Circumference Comment

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Head Circumference Comment2017-2020
Cycle-by-cycle release history
BMIHIPIndexed code and label stable

Hip Circumference Comment

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Hip Circumference Comment2017-2020
Cycle-by-cycle release history
BMIHTIndexed code and label stable

Standing Height Comment

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Standing Height Comment2017-2020
Cycle-by-cycle release history
BMILEGIndexed code and label stable

Upper Leg Length Comment

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Upper Leg Length Comment2017-2020
Cycle-by-cycle release history
BMIRECUMIndexed code and label stable

Recumbent Length Comment

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Recumbent Length Comment2017-2020
Cycle-by-cycle release history
BMIWAISTIndexed code and label stable

Waist Circumference Comment

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Waist Circumference Comment2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_BMX — Waist Circumference Comment — Body Measures (Examination)
BMIWTIndexed code and label stable

Weight Comment

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Weight Comment2017-2020
Cycle-by-cycle release history
BMXARMCIndexed code and label stable

Arm Circumference (cm)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Arm Circumference (cm)2017-2020
Cycle-by-cycle release history
BMXARMLIndexed code and label stable

Upper Arm Length (cm)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Upper Arm Length (cm)2017-2020
Cycle-by-cycle release history
BMXBMIPraxis evidence enriched

Body Mass Index (kg/m**2)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Supporting source-evidence notes

Method documentation varies across releases. Praxis flags the affected boundaries for review without automatically calling them scientific method changes.

These notes summarize indexed evidence and method-text signals. They do not supersede the qualified harmonization assessment above.

Documented weight variables
No explicit weight captured
Units observed
Not stated / categorical
Enriched releases
12
Method-change status
documentation varies
Method-change assessment

Method documentation varies across cycles

Method documentation or comparability language varies across releases, but Praxis has not confirmed a substantive method change from the captured text alone. Review the flagged boundaries before pooling.

Releases with method evidence
12
Flagged method boundaries
11
Assessment status
Method documentation varies across cycles
Inference rule
Documentation differences ≠ confirmed method changes
Method / instrument change points and harmonization actions
  • 1999-2000 → 2001-2002: Documentation changed — method change not yet confirmed · Evidence: automated documentation comparison. The captured CDC/NCHS method documentation differs from the preceding enriched release. Praxis does not treat a text difference alone as proof that the scientific method changed.
    Harmonization action: Review the linked source documents before pooling across this boundary. Until a substantive method/instrument change is confirmed, classify this as documentation variation rather than a scientific discontinuity. Review source
  • 2001-2002 → 2003-2004: Documentation changed — method change not yet confirmed · Evidence: automated documentation comparison. The captured CDC/NCHS method documentation differs from the preceding enriched release. Praxis does not treat a text difference alone as proof that the scientific method changed.
    Harmonization action: Review the linked source documents before pooling across this boundary. Until a substantive method/instrument change is confirmed, classify this as documentation variation rather than a scientific discontinuity. Review source
  • 2003-2004 → 2005-2006: Documentation changed — method change not yet confirmed · Evidence: automated documentation comparison. The captured CDC/NCHS method documentation differs from the preceding enriched release. Praxis does not treat a text difference alone as proof that the scientific method changed.
    Harmonization action: Review the linked source documents before pooling across this boundary. Until a substantive method/instrument change is confirmed, classify this as documentation variation rather than a scientific discontinuity. Review source
  • 2005-2006 → 2007-2008: Documentation changed — method change not yet confirmed · Evidence: automated documentation comparison. The captured CDC/NCHS method documentation differs from the preceding enriched release. Praxis does not treat a text difference alone as proof that the scientific method changed.
    Harmonization action: Review the linked source documents before pooling across this boundary. Until a substantive method/instrument change is confirmed, classify this as documentation variation rather than a scientific discontinuity. Review source
  • 2007-2008 → 2009-2010: Documentation changed — method change not yet confirmed · Evidence: automated documentation comparison. The captured CDC/NCHS method documentation differs from the preceding enriched release. Praxis does not treat a text difference alone as proof that the scientific method changed.
    Harmonization action: Review the linked source documents before pooling across this boundary. Until a substantive method/instrument change is confirmed, classify this as documentation variation rather than a scientific discontinuity. Review source
  • 2009-2010 → 2011-2012: Documentation changed — method change not yet confirmed · Evidence: automated documentation comparison. The captured CDC/NCHS method documentation differs from the preceding enriched release. Praxis does not treat a text difference alone as proof that the scientific method changed.
    Harmonization action: Review the linked source documents before pooling across this boundary. Until a substantive method/instrument change is confirmed, classify this as documentation variation rather than a scientific discontinuity. Review source
  • 2011-2012 → 2013-2014: Documentation changed — method change not yet confirmed · Evidence: automated documentation comparison. The captured CDC/NCHS method documentation differs from the preceding enriched release. Praxis does not treat a text difference alone as proof that the scientific method changed.
    Harmonization action: Review the linked source documents before pooling across this boundary. Until a substantive method/instrument change is confirmed, classify this as documentation variation rather than a scientific discontinuity. Review source
  • 2013-2014 → 2015-2016: Documentation changed — method change not yet confirmed · Evidence: automated documentation comparison. The captured CDC/NCHS method documentation differs from the preceding enriched release. Praxis does not treat a text difference alone as proof that the scientific method changed.
    Harmonization action: Review the linked source documents before pooling across this boundary. Until a substantive method/instrument change is confirmed, classify this as documentation variation rather than a scientific discontinuity. Review source
  • 2015-2016 → 2017-2018: Documentation changed — method change not yet confirmed · Evidence: automated documentation comparison. The captured CDC/NCHS method documentation differs from the preceding enriched release. Praxis does not treat a text difference alone as proof that the scientific method changed.
    Harmonization action: Review the linked source documents before pooling across this boundary. Until a substantive method/instrument change is confirmed, classify this as documentation variation rather than a scientific discontinuity. Review source
  • 2017-2018 → 2017-2020: Documentation changed — method change not yet confirmed · Evidence: automated documentation comparison. The captured CDC/NCHS method documentation differs from the preceding enriched release. Praxis does not treat a text difference alone as proof that the scientific method changed.
    Harmonization action: Review the linked source documents before pooling across this boundary. Until a substantive method/instrument change is confirmed, classify this as documentation variation rather than a scientific discontinuity. Review source
  • 2017-2020 → 2021-2023: Documentation changed — method change not yet confirmed · Evidence: automated documentation comparison. The captured CDC/NCHS method documentation differs from the preceding enriched release. Praxis does not treat a text difference alone as proof that the scientific method changed.
    Harmonization action: Review the linked source documents before pooling across this boundary. Until a substantive method/instrument change is confirmed, classify this as documentation variation rather than a scientific discontinuity. Review source
Cycle-by-cycle method chronology
  • 1999-2000: BMX — Data Collection Methods The data collection methods, examination protocol, and data collection forms are fully documented in the Anthropometry Procedures Manual. Examination Protocol See Item 3 above. In addition, for general guidelines on standard procedures that were followed for the anthropometric measures, refer to the Anthropometric Standardization Reference manual (Lohman, 1988). For specific guidelines, the Anthropometric Procedures Video that demonstrates the NHANES III anthropometric p…
  • 2001-2002: BMX_B — The data collection methods, examination protocol, and data collection forms are fully documented in the NHANES Anthropometry Procedures Manual. In addition, for general guidelines on standard procedures that were followed for the anthropometric measures, please refer to the Anthropometric Standardization Reference Manual (Lohman, 1988). The actual measurement techniques used in the survey are illustrated in the NHANES III Anthropometric Procedures Video. The video demonstrates the NHANES III a…
  • 2003-2004: BMX_C — The body measurement assessments performed on survey participants varied according to the age of the survey participant. The body measurement protocol used age at the time of the screening interview. In some instances, several weeks elapsed between the initial screening interview and the health examination visit. The Demographics Data File includes an age variable for age at examination (RIDAGEEX). Arm and leg measurements were made on the right side of the body. If an examinee had an amputatio…
  • 2005-2006: BMX_D — The body measurement data were collected by trained health technicians. The health technician was accompanied by a recorder during each body measurement examination. The respondent’s age, at the time of the screening interview, determined the body measurement examination protocol for survey participants. In some instances, several weeks elapsed between the initial screening interview and the health examination. The Demographics data file includes variables for age at screening (RIDAGEYR and RID…
  • 2007-2008: BMX_E — The body measurement data were collected by trained health technicians. The health technician was assisted by a recorder during the body measurement examination. The respondent’s age at the time of the screening interview determined the body measurement examination protocol for survey participants. In some instances the age at screening interview and age at the time of the health examination differed by several weeks. The Demographics data file includes variables for age at screening (RIDAGEYR …
  • 2009-2010: BMX_F — The body measurement data were collected, in the Mobile Examination Center (MEC), by trained health technicians. The health technician was assisted by a recorder during the body measurement examination. The respondent’s age at the time of the screening interview determined the body measurement examination protocol for survey participants. In some instances the age at screening interview and age at the time of the health examination differed by several weeks. The Demographics data file includes …
  • 2011-2012: BMX_G — The body measures data were collected, in the Mobile Examination Center (MEC), by trained health technicians. The health technician was assisted by a recorder during the body measures examination. The participant’s age at the time of the screening interview determined the body measures examination protocol. In some instances, the age at the screening interview and age at the time of the health examination differed by several weeks. The Demographics data file includes variables for age in years …
  • 2013-2014: BMX_H — The body measures data were collected, in the Mobile Examination Center (MEC), by trained health technicians. The health technician was assisted by a recorder during the body measures examination. The participant’s age at the time of the screening interview determined the body measures examination protocol. In some instances, the age at the screening interview and age at the time of the health examination differed by several weeks. The Demographics data file includes variables for age in years …
  • 2015-2016: BMX_I — The body measures data were collected, in the Mobile Examination Center (MEC), by trained health technicians. The health technician was assisted by a recorder during the body measures examination. The participant’s age at the time of the screening interview determined the body measures examination protocol. In some instances, the age at the screening interview and age at the time of the health examination differed by several weeks. The Demographics data file includes variables for age in years …
  • 2017-2018: BMX_J — The body measures data were collected, in the Mobile Examination Center (MEC), by trained health technicians. The health technician was assisted by a recorder during the body measures examination. The participant’s age at the time of the screening interview determined the body measures examination protocol. In some instances, the age at the screening interview and age at the time of the health examination differed by several weeks. The Demographics data file includes variables for age in years …
  • 2017-2020: P_BMX — The body measures data were collected, in the Mobile Examination Center (MEC), by trained health technicians. The health technician was assisted by a recorder during the body measures examination. The participant’s age at the time of the screening interview determined the body measures examination protocol. In some instances, the age at the screening interview and age at the time of the health examination differed by several weeks. The Demographics data file includes variables age in years at s…
  • 2021-2023: BMX_L — The body measures data were collected, in the Mobile Examination Center (MEC), by trained health technicians. The health technician was assisted by a recorder during the body measures examination. The participant’s age at the time of the screening interview determined the body measures examination protocol. In some instances, the age at the screening interview and age at the time of the health examination differed by several weeks. The Demographics data file includes variables age in years at s…
Praxis-enriched cycle evidence
  • 1999-2000: BMX · Target: Both males and females 2 YEARS - 150 YEARS · Method evidence captured
  • 2001-2002: BMX_B · Target: Both males and females 2 YEARS - 150 YEARS · Method evidence captured
  • 2003-2004: BMX_C · Target: Both males and females 2 YEARS - 150 YEARS · Method evidence captured
  • 2005-2006: BMX_D · Target: Both males and females 2 YEARS - 150 YEARS · Method evidence captured
  • 2007-2008: BMX_E · Target: Both males and females 2 YEARS - 150 YEARS · Method evidence captured
  • 2009-2010: BMX_F · Target: Both males and females 2 YEARS - 150 YEARS · Method evidence captured
  • 2011-2012: BMX_G · Target: Both males and females 2 YEARS - 150 YEARS · Method evidence captured
  • 2013-2014: BMX_H · Target: Both males and females 2 YEARS - 150 YEARS · Method evidence captured
  • 2015-2016: BMX_I · Target: Both males and females 2 YEARS - 150 YEARS · Method evidence captured
  • 2017-2018: BMX_J · Target: Both males and females 2 YEARS - 150 YEARS · Method evidence captured
  • 2017-2020: P_BMX · Target: Both males and females 2 YEARS - 150 YEARS · Method evidence captured
  • 2021-2023: BMX_L · Target: Both males and females 2 YEARS - 150 YEARS · Method evidence captured
Variable names / labels over time
  • Body Mass Index (kg/m**2)2017-2020
Cycle-by-cycle release history
BMXHEADIndexed code and label stable

Head Circumference (cm)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Head Circumference (cm)2017-2020
Cycle-by-cycle release history
BMXHIPIndexed code and label stable

Hip Circumference (cm)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Hip Circumference (cm)2017-2020
Cycle-by-cycle release history
BMXHTIndexed code and label stable

Standing Height (cm)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Standing Height (cm)2017-2020
Cycle-by-cycle release history
BMXLEGIndexed code and label stable

Upper Leg Length (cm)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Upper Leg Length (cm)2017-2020
Cycle-by-cycle release history
BMXRECUMIndexed code and label stable

Recumbent Length (cm)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Recumbent Length (cm)2017-2020
Cycle-by-cycle release history
BMXWAISTIndexed code and label stable

Waist Circumference (cm)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Waist Circumference (cm)2017-2020
Cycle-by-cycle release history
BMXWTIndexed code and label stable

Weight (kg)

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Weight (kg)2017-2020
Cycle-by-cycle release history
BPAOARMIndexed code and label stable

Arm selected - oscillometric

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Arm selected - oscillometric2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_BPXO — Arm selected - oscillometric — Blood Pressure - Oscillometric Measurement (Examination)
BPAOCSZIndexed code and label stable

Mid arm circumference (cm) cuffing parameters - oscillometric

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Mid arm circumference (cm) cuffing parameters - oscillometric2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_BPXO — Mid arm circumference (cm) cuffing parameters - oscillometric — Blood Pressure - Oscillometric Measurement (Examination)
BPD035Indexed code and label stable

How old {were you/was SP} when {you were/he/she was} first told that {you/he/she} had hypertension or high blood pressure?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • How old {were you/was SP} when {you were/he/she was} first told that {you/he/she} had hypertension or high blood pressure?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_BPQ — How old {were you/was SP} when {you were/he/she was} first told that {you/he/she} had hypertension or high blood pressure? — Blood Pressure & Cholesterol (Questionnaire)
BPQ020Indexed code and label stable

{Have you/Has SP} ever been told by a doctor or other health professional that {you/s/he} had hypertension, also called high blood pressure?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • {Have you/Has SP} ever been told by a doctor or other health professional that {you/s/he} had hypertension, also called high blood pressure?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_BPQ — {Have you/Has SP} ever been told by a doctor or other health professional that {you/s/he} had hypertension, also called high blood pressure? — Blood Pressure & Cholesterol (Questionnaire)
BPQ030Indexed code and label stable

{Were you/Was SP} told on 2 or more different visits that {you/s/he} had hypertension, also called high blood pressure?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • {Were you/Was SP} told on 2 or more different visits that {you/s/he} had hypertension, also called high blood pressure?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_BPQ — {Were you/Was SP} told on 2 or more different visits that {you/s/he} had hypertension, also called high blood pressure? — Blood Pressure & Cholesterol (Questionnaire)
BPQ040AIndexed code and label stable

Because of {your/SP's} (high blood pressure/hypertension), {have you/has s/he} ever been told to . . . take prescribed medicine?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Because of {your/SP's} (high blood pressure/hypertension), {have you/has s/he} ever been told to . . . take prescribed medicine?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_BPQ — Because of {your/SP's} (high blood pressure/hypertension), {have you/has s/he} ever been told to . . . take prescribed medicine? — Blood Pressure & Cholesterol (Questionnaire)
BPQ050AIndexed code and label stable

{Are you/Is SP} now taking prescribed medicine?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • {Are you/Is SP} now taking prescribed medicine?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_BPQ — {Are you/Is SP} now taking prescribed medicine? — Blood Pressure & Cholesterol (Questionnaire)
BPQ060Indexed code and label stable

{Have you/Has SP} ever had {your/his/her} blood cholesterol checked?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • {Have you/Has SP} ever had {your/his/her} blood cholesterol checked?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_BPQ — {Have you/Has SP} ever had {your/his/her} blood cholesterol checked? — Blood Pressure & Cholesterol (Questionnaire)
BPQ070Indexed code and label stable

About how long has it been since {you/SP} last had {your/his/her} blood cholesterol checked? Has it been...

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • About how long has it been since {you/SP} last had {your/his/her} blood cholesterol checked? Has it been...2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_BPQ — About how long has it been since {you/SP} last had {your/his/her} blood cholesterol checked? Has it been... — Blood Pressure & Cholesterol (Questionnaire)
BPQ080Indexed code and label stable

{Have you/Has SP} ever been told by a doctor or other health professional that {your/his/her} blood cholesterol level was high?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • {Have you/Has SP} ever been told by a doctor or other health professional that {your/his/her} blood cholesterol level was high?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_BPQ — {Have you/Has SP} ever been told by a doctor or other health professional that {your/his/her} blood cholesterol level was high? — Blood Pressure & Cholesterol (Questionnaire)
BPQ090DIndexed code and label stable

[To lower (your/his/her) blood cholesterol, (have/has) (you/SP) ever been told by a doctor or other health professional]... to take prescribed medicine?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • [To lower (your/his/her) blood cholesterol, (have/has) (you/SP) ever been told by a doctor or other health professional]... to take prescribed medicine?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_BPQ — [To lower (your/his/her) blood cholesterol, (have/has) (you/SP) ever been told by a doctor or other health professional]... to take prescribed medicine? — Blood Pressure & Cholesterol (Questionnaire)
BPQ100DIndexed code and label stable

(Are you/Is SP) now following this advice to take prescribed medicine?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • (Are you/Is SP) now following this advice to take prescribed medicine?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_BPQ — (Are you/Is SP) now following this advice to take prescribed medicine? — Blood Pressure & Cholesterol (Questionnaire)
BPXODI1Indexed code and label stable

Diastolic - 1st oscillometric reading

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Diastolic - 1st oscillometric reading2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_BPXO — Diastolic - 1st oscillometric reading — Blood Pressure - Oscillometric Measurement (Examination)
BPXODI2Indexed code and label stable

Diastolic - 2nd oscillometric reading

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Diastolic - 2nd oscillometric reading2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_BPXO — Diastolic - 2nd oscillometric reading — Blood Pressure - Oscillometric Measurement (Examination)
BPXODI3Indexed code and label stable

Diastolic - 3rd oscillometric reading

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Diastolic - 3rd oscillometric reading2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_BPXO — Diastolic - 3rd oscillometric reading — Blood Pressure - Oscillometric Measurement (Examination)
BPXOPLS1Indexed code and label stable

Pulse - 1st oscillometric reading

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Pulse - 1st oscillometric reading2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_BPXO — Pulse - 1st oscillometric reading — Blood Pressure - Oscillometric Measurement (Examination)
BPXOPLS2Indexed code and label stable

Pulse - 2nd oscillometric reading

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Pulse - 2nd oscillometric reading2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_BPXO — Pulse - 2nd oscillometric reading — Blood Pressure - Oscillometric Measurement (Examination)
BPXOPLS3Indexed code and label stable

Pulse - 3rd oscillometric reading

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Pulse - 3rd oscillometric reading2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_BPXO — Pulse - 3rd oscillometric reading — Blood Pressure - Oscillometric Measurement (Examination)
BPXOSY1Praxis evidence enriched

Systolic - 1st oscillometric reading

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Supporting source-evidence notes

Method documentation varies across releases. Praxis flags the affected boundaries for review without automatically calling them scientific method changes.

These notes summarize indexed evidence and method-text signals. They do not supersede the qualified harmonization assessment above.

Documented weight variables
No explicit weight captured
Units observed
Not stated / categorical
Enriched releases
3
Method-change status
documentation varies
Method-change assessment

Method documentation varies across cycles

Method documentation or comparability language varies across releases, but Praxis has not confirmed a substantive method change from the captured text alone. Review the flagged boundaries before pooling.

Releases with method evidence
3
Flagged method boundaries
2
Assessment status
Method documentation varies across cycles
Inference rule
Documentation differences ≠ confirmed method changes
Method / instrument change points and harmonization actions
  • 2017-2018 → 2017-2020: Documentation changed — method change not yet confirmed · Evidence: automated documentation comparison. The captured CDC/NCHS method documentation differs from the preceding enriched release. Praxis does not treat a text difference alone as proof that the scientific method changed.
    Harmonization action: Review the linked source documents before pooling across this boundary. Until a substantive method/instrument change is confirmed, classify this as documentation variation rather than a scientific discontinuity. Review source
  • 2017-2020 → 2021-2023: Documentation changed — method change not yet confirmed · Evidence: automated documentation comparison. The captured CDC/NCHS method documentation differs from the preceding enriched release. Praxis does not treat a text difference alone as proof that the scientific method changed.
    Harmonization action: Review the linked source documents before pooling across this boundary. Until a substantive method/instrument change is confirmed, classify this as documentation variation rather than a scientific discontinuity. Review source
Cycle-by-cycle method chronology
  • 2017-2018: BPXO_J — All BP measurements (systolic and diastolic) are taken in the mobile examination center (MEC). Prior to obtaining BP measurements, upper arm circumference is measured, which is done to guide selection of cuff size. Details on the protocol for obtaining upper arm circumference is described in the Anthropometry Procedures Manual. After resting quietly in a seated position for 5 minutes; three consecutive BP measurements (systolic and diastolic) were taken 60 seconds apart using a digital upper-ar…
  • 2017-2020: P_BPXO — All BP measurements are taken in the mobile examination center (MEC). Prior to obtaining BP measurements, upper arm circumference is measured, which is done to guide selection of cuff size. Details on the protocol for obtaining upper arm circumference is described in the Anthropometry Procedures Manual. After resting quietly in a seated position for 5 minutes; three consecutive BP measurements were taken 60 seconds apart using a digital upper-arm electronic measurement device, Omron HEM–907XL. …
  • 2021-2023: BPXO_L — All BP measurements are taken in the mobile examination center (MEC). Prior to obtaining BP measurements, upper arm circumference is measured, which is done to guide selection of cuff size. After resting quietly in a seated position for 5 minutes, three consecutive BP measurements (systolic and diastolic) were taken 60 seconds apart using a digital upper-arm electronic blood pressure measurement device, Omron HEM–907XL. This device has been previously validated by both the Association for the A…
Praxis-enriched cycle evidence
  • 2017-2018: BPXO_J · Target: Both males and females 8 YEARS - 150 YEARS · Method evidence captured
  • 2017-2020: P_BPXO · Target: Both males and females 8 YEARS - 150 YEARS · Method evidence captured
  • 2021-2023: BPXO_L · Target: Both males and females 8 YEARS - 150 YEARS · Method evidence captured
Variable names / labels over time
  • Systolic - 1st oscillometric reading2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_BPXO — Systolic - 1st oscillometric reading — Blood Pressure - Oscillometric Measurement (Examination)
BPXOSY2Indexed code and label stable

Systolic - 2nd oscillometric reading

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Systolic - 2nd oscillometric reading2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_BPXO — Systolic - 2nd oscillometric reading — Blood Pressure - Oscillometric Measurement (Examination)
BPXOSY3Indexed code and label stable

Systolic - 3rd oscillometric reading

Observed years
20172020
Release records
1
Datasets
1
Components
Examination
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Systolic - 3rd oscillometric reading2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_BPXO — Systolic - 3rd oscillometric reading — Blood Pressure - Oscillometric Measurement (Examination)
CBD071Indexed code and label stable

The next questions are about how much money {your family spends/you spend} on food. First I'll ask you about money spent at supermarkets or grocery stores. Then we will talk about money spent at other types of stores. When you answer these questions, please do not include money spent on alcoholic beverages. During the past 30 days, how much money {did your family/did you} spend at supermarkets or grocery stores? Please include purchases made with food stamps. (You can tell me per week or per month.)

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • The next questions are about how much money {your family spends/you spend} on food. First I'll ask you about money spent at supermarkets or grocery stores. Then we will talk about money spent at other types of stores. When you answer these questions, please do not include money spent on alcoholic beverages. During the past 30 days, how much money {did your family/did you} spend at supermarkets or grocery stores? Please include purchases made with food stamps. (You can tell me per week or per month.)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQ_R — The next questions are about how much money {your family spends/you spend} on food. First I'll ask you about money spent at supermarkets or grocery stores. Then we will talk about money spent at other types of stores. When you answer these questions, please do not include money spent on alcoholic beverages. During the past 30 days, how much money {did your family/did you} spend at supermarkets or grocery stores? Please include purchases made with food stamps. (You can tell me per week or per month.) — Consumer Behavior (Questionnaire) — Note: RDC Only
CBD091Indexed code and label stable

About how much money was spent on nonfood items? (You can tell me per week or per month.)

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • About how much money was spent on nonfood items? (You can tell me per week or per month.)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQ_R — About how much money was spent on nonfood items? (You can tell me per week or per month.) — Consumer Behavior (Questionnaire) — Note: RDC Only
CBD111Indexed code and label stable

About how much money {did your family/did you} spend on food at these types of stores? Please do not include money you have already told me about. (You can tell me per week or per month.)

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • About how much money {did your family/did you} spend on food at these types of stores? Please do not include money you have already told me about. (You can tell me per week or per month.)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQ_R — About how much money {did your family/did you} spend on food at these types of stores? Please do not include money you have already told me about. (You can tell me per week or per month.) — Consumer Behavior (Questionnaire) — Note: RDC Only
CBD121Indexed code and label stable

During the past 30 days, how much money {did your family/did you} spend on eating out? Please include money spent in cafeterias at work or at school or on vending machines, for all family members. (You can tell me per week or per month.)

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • During the past 30 days, how much money {did your family/did you} spend on eating out? Please include money spent in cafeterias at work or at school or on vending machines, for all family members. (You can tell me per week or per month.)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQ_R — During the past 30 days, how much money {did your family/did you} spend on eating out? Please include money spent in cafeterias at work or at school or on vending machines, for all family members. (You can tell me per week or per month.) — Consumer Behavior (Questionnaire) — Note: RDC Only
CBD131Indexed code and label stable

During the past 30 days, how much money {did your family/did you} spend on food carried out or delivered? Please do not include money you have already told me about. (You can tell me per week or per month.)

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • During the past 30 days, how much money {did your family/did you} spend on food carried out or delivered? Please do not include money you have already told me about. (You can tell me per week or per month.)2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQ_R — During the past 30 days, how much money {did your family/did you} spend on food carried out or delivered? Please do not include money you have already told me about. (You can tell me per week or per month.) — Consumer Behavior (Questionnaire) — Note: RDC Only
CBD760Indexed code and label stable

How old are you?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • How old are you?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQPFC — How old are you? — Consumer Behavior Phone Follow-up Module – Child (Questionnaire)
CBD765Indexed code and label stable

Which of the following best describe your highest education level?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Which of the following best describe your highest education level?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQPFC — Which of the following best describe your highest education level? — Consumer Behavior Phone Follow-up Module – Child (Questionnaire)
CBD770Indexed code and label stable

What is the gender of the respondent?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • What is the gender of the respondent?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQPFC — What is the gender of the respondent? — Consumer Behavior Phone Follow-up Module – Child (Questionnaire)
CBD925Multiple dataset contexts

Now turn to {hand cards 22 and 23/hand cards 24 and 25}. The label of the product shows 10% Daily Value for Vitamin D in a serving of the product. What does the 10% Daily Value mean to you?

Observed years
20172020
Release records
2
Datasets
2
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Now turn to {hand cards 22 and 23/hand cards 24 and 25}. The label of the product shows 10% Daily Value for Vitamin D in a serving of the product. What does the 10% Daily Value mean to you?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQPFA — Now turn to {hand cards 22 and 23/hand cards 24 and 25}. The label of the product shows 10% Daily Value for Vitamin D in a serving of the product. What does the 10% Daily Value mean to you? — Consumer Behavior Phone Follow-up Module - Adult (Questionnaire)
  • 2017-2020: P_CBQPFC — Now turn to {hand cards 22 and 23/hand cards 24 and 25}. The label of the product shows 10% Daily Value for Vitamin D in a serving of the product. What does the 10% Daily Value mean to you? — Consumer Behavior Phone Follow-up Module – Child (Questionnaire)
CBQ502Multiple dataset contexts

Do you have the green hand card booklet? {It is in the same bag as the food measuring guides [you used for your/we used for SP’s] dietary phone interview. I'll wait while you locate it. Do you have it?}

Observed years
20172020
Release records
2
Datasets
2
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Do you have the green hand card booklet? {It is in the same bag as the food measuring guides [you used for your/we used for SP’s] dietary phone interview. I'll wait while you locate it. Do you have it?}2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQPFA — Do you have the green hand card booklet? {It is in the same bag as the food measuring guides [you used for your/we used for SP’s] dietary phone interview. I'll wait while you locate it. Do you have it?} — Consumer Behavior Phone Follow-up Module - Adult (Questionnaire)
  • 2017-2020: P_CBQPFC — Do you have the green hand card booklet? {It is in the same bag as the food measuring guides [you used for your/we used for SP’s] dietary phone interview. I'll wait while you locate it. Do you have it?} — Consumer Behavior Phone Follow-up Module – Child (Questionnaire)
CBQ503Multiple dataset contexts

Let's go ahead with the interview anyway. Do you have a cereal box, can or package of food with a food label on the back or the side that you can use for this interview? I'll wait while you locate it.

Observed years
20172020
Release records
2
Datasets
2
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Let's go ahead with the interview anyway. Do you have a cereal box, can or package of food with a food label on the back or the side that you can use for this interview? I'll wait while you locate it.2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQPFA — Let's go ahead with the interview anyway. Do you have a cereal box, can or package of food with a food label on the back or the side that you can use for this interview? I'll wait while you locate it. — Consumer Behavior Phone Follow-up Module - Adult (Questionnaire)
  • 2017-2020: P_CBQPFC — Let's go ahead with the interview anyway. Do you have a cereal box, can or package of food with a food label on the back or the side that you can use for this interview? I'll wait while you locate it. — Consumer Behavior Phone Follow-up Module – Child (Questionnaire)
CBQ506Multiple dataset contexts

I am going to ask you about eating foods and beverages from different places. The types of places are listed on hand card 1 in your booklet. Please turn to hand card 1. We will start with foods or beverages from fast food or pizza places, then I'll go down the list and ask you about each of the other places.} For the first few questions, please answer yes or no. In the past 12 months, did you buy food from fast food or pizza places?

Observed years
20172020
Release records
2
Datasets
2
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • I am going to ask you about eating foods and beverages from different places. The types of places are listed on hand card 1 in your booklet. Please turn to hand card 1. We will start with foods or beverages from fast food or pizza places, then I'll go down the list and ask you about each of the other places.} For the first few questions, please answer yes or no. In the past 12 months, did you buy food from fast food or pizza places?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQPFA — I am going to ask you about eating foods and beverages from different places. The types of places are listed on hand card 1 in your booklet. Please turn to hand card 1. We will start with foods or beverages from fast food or pizza places, then I'll go down the list and ask you about each of the other places.} For the first few questions, please answer yes or no. In the past 12 months, did you buy food from fast food or pizza places? — Consumer Behavior Phone Follow-up Module - Adult (Questionnaire)
  • 2017-2020: P_CBQPFC — I am going to ask you about eating foods and beverages from different places. The types of places are listed on hand card 1 in your booklet. Please turn to hand card 1. We will start with foods or beverages from fast food or pizza places, then I'll go down the list and ask you about each of the other places.} For the first few questions, please answer yes or no. In the past 12 months, did you buy food from fast food or pizza places? — Consumer Behavior Phone Follow-up Module – Child (Questionnaire)
CBQ536Multiple dataset contexts

At the last fast food or pizza place you bought foods or beverages, did you notice any calorie information on the menu?

Observed years
20172020
Release records
2
Datasets
2
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • At the last fast food or pizza place you bought foods or beverages, did you notice any calorie information on the menu?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQPFA — At the last fast food or pizza place you bought foods or beverages, did you notice any calorie information on the menu? — Consumer Behavior Phone Follow-up Module - Adult (Questionnaire)
  • 2017-2020: P_CBQPFC — At the last fast food or pizza place you bought foods or beverages, did you notice any calorie information on the menu? — Consumer Behavior Phone Follow-up Module – Child (Questionnaire)
CBQ541Multiple dataset contexts

Did you use the information in deciding what to buy?

Observed years
20172020
Release records
2
Datasets
2
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Did you use the information in deciding what to buy?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQPFA — Did you use the information in deciding what to buy? — Consumer Behavior Phone Follow-up Module - Adult (Questionnaire)
  • 2017-2020: P_CBQPFC — Did you use the information in deciding what to buy? — Consumer Behavior Phone Follow-up Module – Child (Questionnaire)
CBQ551Multiple dataset contexts

In the past 12 months, did you eat in or get take-out from a restaurant with waiter or waitress service?

Observed years
20172020
Release records
2
Datasets
2
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • In the past 12 months, did you eat in or get take-out from a restaurant with waiter or waitress service?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQPFA — In the past 12 months, did you eat in or get take-out from a restaurant with waiter or waitress service? — Consumer Behavior Phone Follow-up Module - Adult (Questionnaire)
  • 2017-2020: P_CBQPFC — In the past 12 months, did you eat in or get take-out from a restaurant with waiter or waitress service? — Consumer Behavior Phone Follow-up Module – Child (Questionnaire)
CBQ581Multiple dataset contexts

The last time you ate or got take-out from a restaurant with a waiter or waitress, did you notice any calorie information on the menu?

Observed years
20172020
Release records
2
Datasets
2
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • The last time you ate or got take-out from a restaurant with a waiter or waitress, did you notice any calorie information on the menu?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQPFA — The last time you ate or got take-out from a restaurant with a waiter or waitress, did you notice any calorie information on the menu? — Consumer Behavior Phone Follow-up Module - Adult (Questionnaire)
  • 2017-2020: P_CBQPFC — The last time you ate or got take-out from a restaurant with a waiter or waitress, did you notice any calorie information on the menu? — Consumer Behavior Phone Follow-up Module – Child (Questionnaire)
CBQ586Multiple dataset contexts

Did you use the information in deciding what to order?

Observed years
20172020
Release records
2
Datasets
2
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Did you use the information in deciding what to order?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQPFA — Did you use the information in deciding what to order? — Consumer Behavior Phone Follow-up Module - Adult (Questionnaire)
  • 2017-2020: P_CBQPFC — Did you use the information in deciding what to order? — Consumer Behavior Phone Follow-up Module – Child (Questionnaire)
CBQ596Indexed code and label stable

Next I'm going to ask a few questions about the nutritional guidelines recommended for Americans by the federal government. {Have you/Has SP} heard of My Plate?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • Next I'm going to ask a few questions about the nutritional guidelines recommended for Americans by the federal government. {Have you/Has SP} heard of My Plate?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_DBQ — Next I'm going to ask a few questions about the nutritional guidelines recommended for Americans by the federal government. {Have you/Has SP} heard of My Plate? — Diet Behavior & Nutrition (Questionnaire)
CBQ606Indexed code and label stable

{Have you/Has SP} looked up the My Plate plan on the internet?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • {Have you/Has SP} looked up the My Plate plan on the internet?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_DBQ — {Have you/Has SP} looked up the My Plate plan on the internet? — Diet Behavior & Nutrition (Questionnaire)
CBQ611Indexed code and label stable

{Have you/Has SP} tried to follow the recommendations in the My Plate plan?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • {Have you/Has SP} tried to follow the recommendations in the My Plate plan?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_DBQ — {Have you/Has SP} tried to follow the recommendations in the My Plate plan? — Diet Behavior & Nutrition (Questionnaire)
CBQ645Indexed code and label stable

{Please turn to hand card 2.} About how many calories do you think a {man/woman} of your age and physical activity needs to consume a day to maintain your current weight?

Observed years
20172020
Release records
1
Datasets
1
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • {Please turn to hand card 2.} About how many calories do you think a {man/woman} of your age and physical activity needs to consume a day to maintain your current weight?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQPFA — {Please turn to hand card 2.} About how many calories do you think a {man/woman} of your age and physical activity needs to consume a day to maintain your current weight? — Consumer Behavior Phone Follow-up Module - Adult (Questionnaire)
CBQ685Multiple dataset contexts

{Please turn to hand cards 16 and 17.} How about the information on the percent daily value? [How often do you use information on the percent daily value on a food label, {such as the part colored in blue on hand card 16,} when deciding to buy a food product?] [Would you say always, most of the time, sometimes, rarely, or never?]

Observed years
20172020
Release records
2
Datasets
2
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • {Please turn to hand cards 16 and 17.} How about the information on the percent daily value? [How often do you use information on the percent daily value on a food label, {such as the part colored in blue on hand card 16,} when deciding to buy a food product?] [Would you say always, most of the time, sometimes, rarely, or never?]2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQPFA — {Please turn to hand cards 16 and 17.} How about the information on the percent daily value? [How often do you use information on the percent daily value on a food label, {such as the part colored in blue on hand card 16,} when deciding to buy a food product?] [Would you say always, most of the time, sometimes, rarely, or never?] — Consumer Behavior Phone Follow-up Module - Adult (Questionnaire)
  • 2017-2020: P_CBQPFC — {Please turn to hand cards 16 and 17.} How about the information on the percent daily value? [How often do you use information on the percent daily value on a food label, {such as the part colored in blue on hand card 16,} when deciding to buy a food product?] [Would you say always, most of the time, sometimes, rarely, or never?] — Consumer Behavior Phone Follow-up Module – Child (Questionnaire)
CBQ695aMultiple dataset contexts

{Now turn to {hand cards 38 and 39/hand cards 40 and 41}.} Again, for this next question you may give more than one answer. Now think about the "serving size" on a food label. What does serving size mean to you? Serving size is...

Observed years
20172020
Release records
2
Datasets
2
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • {Now turn to {hand cards 38 and 39/hand cards 40 and 41}.} Again, for this next question you may give more than one answer. Now think about the "serving size" on a food label. What does serving size mean to you? Serving size is...2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQPFA — {Now turn to {hand cards 38 and 39/hand cards 40 and 41}.} Again, for this next question you may give more than one answer. Now think about the "serving size" on a food label. What does serving size mean to you? Serving size is... — Consumer Behavior Phone Follow-up Module - Adult (Questionnaire)
  • 2017-2020: P_CBQPFC — {Now turn to {hand cards 38 and 39/hand cards 40 and 41}.} Again, for this next question you may give more than one answer. Now think about the "serving size" on a food label. What does serving size mean to you? Serving size is... — Consumer Behavior Phone Follow-up Module – Child (Questionnaire)
CBQ695bMultiple dataset contexts

{Now turn to {hand cards 38 and 39/hand cards 40 and 41}.} Again, for this next question you may give more than one answer. Now think about the "serving size" on a food label. What does serving size mean to you? Serving size is...

Observed years
20172020
Release records
2
Datasets
2
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • {Now turn to {hand cards 38 and 39/hand cards 40 and 41}.} Again, for this next question you may give more than one answer. Now think about the "serving size" on a food label. What does serving size mean to you? Serving size is...2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQPFA — {Now turn to {hand cards 38 and 39/hand cards 40 and 41}.} Again, for this next question you may give more than one answer. Now think about the "serving size" on a food label. What does serving size mean to you? Serving size is... — Consumer Behavior Phone Follow-up Module - Adult (Questionnaire)
  • 2017-2020: P_CBQPFC — {Now turn to {hand cards 38 and 39/hand cards 40 and 41}.} Again, for this next question you may give more than one answer. Now think about the "serving size" on a food label. What does serving size mean to you? Serving size is... — Consumer Behavior Phone Follow-up Module – Child (Questionnaire)
CBQ695cMultiple dataset contexts

{Now turn to {hand cards 38 and 39/hand cards 40 and 41}.} Again, for this next question you may give more than one answer. Now think about the "serving size" on a food label. What does serving size mean to you? Serving size is...

Observed years
20172020
Release records
2
Datasets
2
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • {Now turn to {hand cards 38 and 39/hand cards 40 and 41}.} Again, for this next question you may give more than one answer. Now think about the "serving size" on a food label. What does serving size mean to you? Serving size is...2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQPFA — {Now turn to {hand cards 38 and 39/hand cards 40 and 41}.} Again, for this next question you may give more than one answer. Now think about the "serving size" on a food label. What does serving size mean to you? Serving size is... — Consumer Behavior Phone Follow-up Module - Adult (Questionnaire)
  • 2017-2020: P_CBQPFC — {Now turn to {hand cards 38 and 39/hand cards 40 and 41}.} Again, for this next question you may give more than one answer. Now think about the "serving size" on a food label. What does serving size mean to you? Serving size is... — Consumer Behavior Phone Follow-up Module – Child (Questionnaire)
CBQ698aMultiple dataset contexts

{What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.}

Observed years
20172020
Release records
2
Datasets
2
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • {What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.}2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQPFA — {What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.} — Consumer Behavior Phone Follow-up Module - Adult (Questionnaire)
  • 2017-2020: P_CBQPFC — {What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.} — Consumer Behavior Phone Follow-up Module – Child (Questionnaire)
CBQ698bMultiple dataset contexts

{What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.}

Observed years
20172020
Release records
2
Datasets
2
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • {What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.}2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQPFA — {What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.} — Consumer Behavior Phone Follow-up Module - Adult (Questionnaire)
  • 2017-2020: P_CBQPFC — {What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.} — Consumer Behavior Phone Follow-up Module – Child (Questionnaire)
CBQ698cMultiple dataset contexts

{What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.}

Observed years
20172020
Release records
2
Datasets
2
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • {What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.}2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQPFA — {What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.} — Consumer Behavior Phone Follow-up Module - Adult (Questionnaire)
  • 2017-2020: P_CBQPFC — {What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.} — Consumer Behavior Phone Follow-up Module – Child (Questionnaire)
CBQ698cdMultiple dataset contexts

{What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.}

Observed years
20172020
Release records
2
Datasets
2
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • {What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.}2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQPFA — {What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.} — Consumer Behavior Phone Follow-up Module - Adult (Questionnaire)
  • 2017-2020: P_CBQPFC — {What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.} — Consumer Behavior Phone Follow-up Module – Child (Questionnaire)
CBQ698dMultiple dataset contexts

{What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.}

Observed years
20172020
Release records
2
Datasets
2
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • {What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.}2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQPFA — {What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.} — Consumer Behavior Phone Follow-up Module - Adult (Questionnaire)
  • 2017-2020: P_CBQPFC — {What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.} — Consumer Behavior Phone Follow-up Module – Child (Questionnaire)
CBQ698eMultiple dataset contexts

{What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.}

Observed years
20172020
Release records
2
Datasets
2
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • {What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.}2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQPFA — {What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.} — Consumer Behavior Phone Follow-up Module - Adult (Questionnaire)
  • 2017-2020: P_CBQPFC — {What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.} — Consumer Behavior Phone Follow-up Module – Child (Questionnaire)
CBQ698fMultiple dataset contexts

{What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.}

Observed years
20172020
Release records
2
Datasets
2
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • {What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.}2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQPFA — {What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.} — Consumer Behavior Phone Follow-up Module - Adult (Questionnaire)
  • 2017-2020: P_CBQPFC — {What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.} — Consumer Behavior Phone Follow-up Module – Child (Questionnaire)
CBQ698gMultiple dataset contexts

{What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.}

Observed years
20172020
Release records
2
Datasets
2
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • {What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.}2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQPFA — {What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.} — Consumer Behavior Phone Follow-up Module - Adult (Questionnaire)
  • 2017-2020: P_CBQPFC — {What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.} — Consumer Behavior Phone Follow-up Module – Child (Questionnaire)
CBQ698hMultiple dataset contexts

{What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.}

Observed years
20172020
Release records
2
Datasets
2
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • {What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.}2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQPFA — {What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.} — Consumer Behavior Phone Follow-up Module - Adult (Questionnaire)
  • 2017-2020: P_CBQPFC — {What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.} — Consumer Behavior Phone Follow-up Module – Child (Questionnaire)
CBQ698iMultiple dataset contexts

{What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.}

Observed years
20172020
Release records
2
Datasets
2
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • {What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.}2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQPFA — {What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.} — Consumer Behavior Phone Follow-up Module - Adult (Questionnaire)
  • 2017-2020: P_CBQPFC — {What is the reason or reasons that you rarely or never check the food label when deciding to buy a food product? There are some examples on {hand card 36/hand card 37}. You may give more than one answer.} — Consumer Behavior Phone Follow-up Module – Child (Questionnaire)
CBQ700Multiple dataset contexts

{Now turn the page to use hand card 3.} Many food packages contain an expiration date such as "use by" or "sell by". How often do you use the expiration date when deciding to buy a food product? Would you say always, most of the time, sometimes, rarely, or never?

Observed years
20172020
Release records
2
Datasets
2
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • {Now turn the page to use hand card 3.} Many food packages contain an expiration date such as "use by" or "sell by". How often do you use the expiration date when deciding to buy a food product? Would you say always, most of the time, sometimes, rarely, or never?2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQPFA — {Now turn the page to use hand card 3.} Many food packages contain an expiration date such as "use by" or "sell by". How often do you use the expiration date when deciding to buy a food product? Would you say always, most of the time, sometimes, rarely, or never? — Consumer Behavior Phone Follow-up Module - Adult (Questionnaire)
  • 2017-2020: P_CBQPFC — {Now turn the page to use hand card 3.} Many food packages contain an expiration date such as "use by" or "sell by". How often do you use the expiration date when deciding to buy a food product? Would you say always, most of the time, sometimes, rarely, or never? — Consumer Behavior Phone Follow-up Module – Child (Questionnaire)
CBQ738aMultiple dataset contexts

{What is the reason or reasons that you check the food label when deciding to buy a food product? There are some examples on {hand card 34/hand card 35}. You may give more than one answer.}

Observed years
20172020
Release records
2
Datasets
2
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • {What is the reason or reasons that you check the food label when deciding to buy a food product? There are some examples on {hand card 34/hand card 35}. You may give more than one answer.}2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQPFA — {What is the reason or reasons that you check the food label when deciding to buy a food product? There are some examples on {hand card 34/hand card 35}. You may give more than one answer.} — Consumer Behavior Phone Follow-up Module - Adult (Questionnaire)
  • 2017-2020: P_CBQPFC — {What is the reason or reasons that you check the food label when deciding to buy a food product? There are some examples on {hand card 34/hand card 35}. You may give more than one answer.} — Consumer Behavior Phone Follow-up Module – Child (Questionnaire)
CBQ738bMultiple dataset contexts

{What is the reason or reasons that you check the food label when deciding to buy a food product? There are some examples on {hand card 34/hand card 35}. You may give more than one answer.}

Observed years
20172020
Release records
2
Datasets
2
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • {What is the reason or reasons that you check the food label when deciding to buy a food product? There are some examples on {hand card 34/hand card 35}. You may give more than one answer.}2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQPFA — {What is the reason or reasons that you check the food label when deciding to buy a food product? There are some examples on {hand card 34/hand card 35}. You may give more than one answer.} — Consumer Behavior Phone Follow-up Module - Adult (Questionnaire)
  • 2017-2020: P_CBQPFC — {What is the reason or reasons that you check the food label when deciding to buy a food product? There are some examples on {hand card 34/hand card 35}. You may give more than one answer.} — Consumer Behavior Phone Follow-up Module – Child (Questionnaire)
CBQ738cMultiple dataset contexts

{What is the reason or reasons that you check the food label when deciding to buy a food product? There are some examples on {hand card 34/hand card 35}. You may give more than one answer.}

Observed years
20172020
Release records
2
Datasets
2
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • {What is the reason or reasons that you check the food label when deciding to buy a food product? There are some examples on {hand card 34/hand card 35}. You may give more than one answer.}2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQPFA — {What is the reason or reasons that you check the food label when deciding to buy a food product? There are some examples on {hand card 34/hand card 35}. You may give more than one answer.} — Consumer Behavior Phone Follow-up Module - Adult (Questionnaire)
  • 2017-2020: P_CBQPFC — {What is the reason or reasons that you check the food label when deciding to buy a food product? There are some examples on {hand card 34/hand card 35}. You may give more than one answer.} — Consumer Behavior Phone Follow-up Module – Child (Questionnaire)
CBQ738cdMultiple dataset contexts

{What is the reason or reasons that you check the food label when deciding to buy a food product? There are some examples on {hand card 34/hand card 35}. You may give more than one answer.}

Observed years
20172020
Release records
2
Datasets
2
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • {What is the reason or reasons that you check the food label when deciding to buy a food product? There are some examples on {hand card 34/hand card 35}. You may give more than one answer.}2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQPFA — {What is the reason or reasons that you check the food label when deciding to buy a food product? There are some examples on {hand card 34/hand card 35}. You may give more than one answer.} — Consumer Behavior Phone Follow-up Module - Adult (Questionnaire)
  • 2017-2020: P_CBQPFC — {What is the reason or reasons that you check the food label when deciding to buy a food product? There are some examples on {hand card 34/hand card 35}. You may give more than one answer.} — Consumer Behavior Phone Follow-up Module – Child (Questionnaire)
CBQ738dMultiple dataset contexts

{What is the reason or reasons that you check the food label when deciding to buy a food product? There are some examples on {hand card 34/hand card 35}. You may give more than one answer.}

Observed years
20172020
Release records
2
Datasets
2
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • {What is the reason or reasons that you check the food label when deciding to buy a food product? There are some examples on {hand card 34/hand card 35}. You may give more than one answer.}2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQPFA — {What is the reason or reasons that you check the food label when deciding to buy a food product? There are some examples on {hand card 34/hand card 35}. You may give more than one answer.} — Consumer Behavior Phone Follow-up Module - Adult (Questionnaire)
  • 2017-2020: P_CBQPFC — {What is the reason or reasons that you check the food label when deciding to buy a food product? There are some examples on {hand card 34/hand card 35}. You may give more than one answer.} — Consumer Behavior Phone Follow-up Module – Child (Questionnaire)
CBQ738eMultiple dataset contexts

{What is the reason or reasons that you check the food label when deciding to buy a food product? There are some examples on {hand card 34/hand card 35}. You may give more than one answer.}

Observed years
20172020
Release records
2
Datasets
2
Components
Questionnaire
Qualified harmonization assessment unavailable

Praxis has not returned a qualified current-snapshot assessment for this variable. Do not infer cross-cycle equivalence from catalog or enrichment evidence alone.

Variable names / labels over time
  • {What is the reason or reasons that you check the food label when deciding to buy a food product? There are some examples on {hand card 34/hand card 35}. You may give more than one answer.}2017-2020
Cycle-by-cycle release history
  • 2017-2020: P_CBQPFA — {What is the reason or reasons that you check the food label when deciding to buy a food product? There are some examples on {hand card 34/hand card 35}. You may give more than one answer.} — Consumer Behavior Phone Follow-up Module - Adult (Questionnaire)
  • 2017-2020: P_CBQPFC — {What is the reason or reasons that you check the food label when deciding to buy a food product? There are some examples on {hand card 34/hand card 35}. You may give more than one answer.} — Consumer Behavior Phone Follow-up Module – Child (Questionnaire)