National Health Interview Survey
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The National Health Interview Survey (NHIS) has monitored the health of the nation since 1957. NHIS data on a broad range of health topics are collected through personal household interviews. For over 50 years, the U.S. Census Bureau has been the data collection agent for the National Health Interview Survey. Survey results have been instrumental in providing data to track health status, health care access, and progress toward achieving national health objectives.
Selected Participants
Have you been selected to take part in the National Health Interview Survey?
Learn more about NHIS:
- NHIS Brochure – English [PDF – 379 KB] | Spanish (Español) [PDF – 2 MB]
- Confidentiality Brochure – English [PDF – 446 KB] | Spanish (Español) [PDF – 397 KB]
What's New
- Preliminary Quarterly Microdata File, 2018 quarters 1, 2, and 3 will be available February 27, 2019 (2/2019)
- Wireless Substitution: Estimates From the National Health Interview Survey, January-June 2018 [PDF – 270 KB] (12/27/2018)
- Selected Estimates Based on Data From the January-June 2018 National Health Interview Survey (12/5/2018)
- Summary Health Statistics Tables for the U.S. Population: National Health Interview Survey, 2017 (11/2018)
- Health Insurance Coverage: Estimates From the National Health Interview Survey, January – June 2018 [PDF – 560 KB] (11/15/2018)
- Health Insurance Coverage: Early Release of Quarterly Estimates From the National Health Interview Survey, January 2010–June 2018 [PDF – 373 KB] (11/15/2018)
- Page last reviewed: February 6, 2019
- Page last updated: February 6, 2019
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