National Health and Nutrition Examination Survey
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The National Health and Nutrition Examination Survey (NHANES) is a program of studies designed to assess the health and nutritional status of adults and children in the United States. The survey is unique in that it combines interviews and physical examinations.
Selected Participants
Have you been selected to take part in the National Health and Nutrition Examination Survey?
Information for Health Professionals
Learn about participant involvement and benefits with the National Health and Nutrition Examination Survey
NHANES National Youth Fitness Survey
The NHANES National Youth Fitness Survey (NNYFS) was a one year survey conducted in 2012. The NNYFS collected nationally representative data on physical activity and fitness levels of children and adolescents in the United States through interviews and fitness tests. On September 30, 2013, the first wave of this data was released. To review documentation and download datasets, go to the NNYFS Data and Documentation page.
What's New
Publications
- National Health and Nutrition Examination Survey: California and Los Angeles County, Estimation Methods and Analytic Considerations, 1999-2006 and 2007-2014
- Characteristics of U.S. Adults With Hypertension Who Are Unaware of Their Hypertension, 2011-2014
- Prevalence of HPV in Adults Aged 18–69: United States, 2011–2014
Updated Data
The variable SSTOXAV, Toxoplasmosis IgG Avidity, is being removed from the 2011-2012 data file because this variable is related to Toxoplasmosis IgM antibody which is not being released at this time due to quality control concerns.
- Toxoplasma gondii Antibody – Serum (Surplus) (SSTOXO_G 2011-2012)
Withdrawn Data
The UVOC_G and UVOCS_G datasets will be temporarily removed from the NHANES website for correction, due to lot-to-lot variation of standard materials.
- Volatile Organic Compounds & Metabolites – Urine (Subsample) (UVOC_G 2011-2012)
- Volatile Organic Compounds & Metabolites – Urine – Special Sample (Subsample) (UVOCS_G 2011-2012)
- Page last reviewed: May 30, 2017
- Page last updated: May 30, 2017
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