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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.

2variables selected

1 cycle in this study.

Praxis harmonization check: ready

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

2 variable assessments

ALQ280
Compatiblemoderate confidence

Questionnaire

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

Source releases
3
Available cycles
2017-2018 · 2017-2020 · 2021-2023
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