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.

1variable selected

1 cycle in this study.

Praxis harmonization check: ready

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

1 variable assessment

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ALQ141Q

Compatiblemoderate confidence

Questionnaire

In the past 12 months, on how many days 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?

Source releases: 3
Available cycles: 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

2011-2012: ALQ_G

Remove from study Variable history CDC source