ADfdsec
Indexed NHANES variable
Questionnaire
Adult food security category for last 12 months
- Source releases
- 2
- Available cycles
- 1999-2000 · 2001-2002
- Dataset
- Food Security
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
Praxis harmonization guidance available
Praxis found harmonization conditions for this study and has surfaced them below with the supporting source evidence.
2 variable assessments
INDFMINC
Compatible with harmonizationmoderate confidence
Demographics
Total family income (reported as a range value in dollars)
- Source releases
- 4
- Available cycles
- 1999-2000 · 2001-2002 · 2003-2004 · 2005-2006
- Dataset
- Demographic Variables & Sample Weights
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
Evidence signals: source-derived
Relevant boundaries: 1999-2000 → 2001-2002 · 2001-2002 → 2003-2004 · 2003-2004 → 2005-2006
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.