Praxis Data Lab · NHANES Explorer

Find variables across Continuous NHANES.

Search the indexed CDC/NCHS catalog, add variables directly to your study, and let Praxis evaluate cycle availability, longitudinal changes, methods, and harmonization as your study takes shape.

Search NHANESto see variable coverage

Search by concept, variable code, component, or cycle. Result counts summarize the matching indexed NHANES records.

Automated CDC/NCHS catalog

Continuous NHANES variable results

Add any indexed variable to Study Builder. Praxis evaluates the selected cycles and returns the available harmonization intelligence, source history, and method context.

ACD040Indexed NHANES variable

Questionnaire

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

Source releases
12
Available cycles
1999-2000 · 2001-2002 · 2003-2004 · 2005-2006 · 2007-2008 · 2009-2010 · 2011-2012 · 2013-2014 · 2015-2016 · 2017-2018 · 2017-2020 · 2021-2023
Dataset
Acculturation
CDC/NCHS source releases