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Praxis Data Lab

Praxis Data Lab · Study Builder

Build your NHANES study with harmonization intelligence.

Combine variables from the indexed Continuous NHANES catalog, choose the cycles you need, and see how Praxis connects source history, methods, cycle boundaries, and cross-code lineage into a study-specific harmonization view.

3variables selected

1 cycle in this study.

Praxis harmonization check: ready

The selected variables and cycle span have no indexed blocking harmonization boundary.

3 variable assessments

Your study specification is assembled

Your complete Study Package is ready to review.

See your selected variables, automatic survey fields, reproducible deliverables, and early access price in one clear summary.

$59 $39Review Study Package — $39
ALQ120Q
Compatiblemoderate confidence

Questionnaire

In the past 12 months, 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?

Source releases
9
Available cycles
1999-2000 · 2001-2002 · 2003-2004 · 2005-2006 · 2007-2008 · 2009-2010 · 2011-2012 · 2013-2014 · 2015-2016
Dataset
Alcohol Use

Praxis found no indexed change boundary inside the selected cycle span that prevents pooling. Standard NHANES design requirements still apply.

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

Files for selected cycles
Remove from studyVariable historyCDC source
ARXO2WD
Compatiblemoderate confidence

Examination

OCCIPUT-TO-WALL DISTANCE IN CENTIMETERS

Source releases
1
Available cycles
2009-2010
Dataset
Arthritis Body Measures

Praxis found no indexed change boundary inside the selected cycle span that prevents pooling. Standard NHANES design requirements still apply.

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

Files for selected cycles
    Remove from studyVariable historyCDC source
    AUAMODE
    Compatiblemoderate confidence

    Examination

    Mode of Audiometric Test (Manual/Automatic/Mixed)

    Source releases
    10
    Available cycles
    1999-2000 · 2001-2002 · 2003-2004 · 2005-2006 · 2007-2008 · 2009-2010 · 2011-2012 · 2015-2016 · 2017-2018 · 2017-2020
    Dataset
    Audiometry

    Praxis found no indexed change boundary inside the selected cycle span that prevents pooling. Standard NHANES design requirements still apply.

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

    Files for selected cycles
    Remove from studyVariable historyCDC source