Questionnaires, Datasets, and Related Documentation
These resources from past NHIS years are available for use by researchers, analysts, and others. For more recent study years, visit the NHIS website: https://www.cdc.gov/nchs/nhis/
- Major Changes
Explains the various changes in data collection technology and physical activity questions from 1975 to the present.
- Adult Physical Activity Questions
Questions on adult physical activity are reproduced in a single document for years 1975-2012. This summary document was discontinued after 2012.
- Guide for Data Users
Provides links to NHIS adult physical activity information, including questionnaires, documentation, data file information, SAS/SPSS/Stata input statements, and data sets for each data year in which NHIS adult physical activity questions were asked.
- Physical Activity Recodes
SAS and Stata code are provided here to allow data users to construct recodes for adult leisure-time physical activity that are consistent with the indicators used to track progress toward national health objectives.