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NCHS

Questionnaires, Datasets, and Related Documentation

  • Continuous NHANES Data, Questionnaires and Related Documentation
  • Prior to 1999 Data, Questionnaires, and Related Documentation
    • NHANES III
      Conducted from 1988-1994, the third National Health and Nutrition Examination Survey (NHANES III) focused on oversampling many groups within the U.S. population aged 2 months and over. These oversampled groups included children aged 2 months to 5 years, persons over age 60, Mexican-American persons, and non-Hispanic black persons. This survey also concentrated on health and nutrition but additionally began to collect environmental exposure and infectious disease data.
    • Hispanic HANES
      During 1982-1984, NHANES temporarily shifted to a population-specific survey. The Hispanic Health and Nutrition Survey (HHANES) focused on health and nutrition, but involved only the 3 largest Hispanic subgroups in the U.S. at the time aged 6 months to 74 years:  Mexican-American persons residing in the Southwest, Cuban-American persons residing in Dade County Florida, and Puerto Rican persons residing in the New York City metropolitan area.
    • NHANES II
      Conducted from 1976-1980, the second National Health and Nutrition Examination Survey (NHANES II) focused on nutrition and health, but the age of participation started at 6 month. The maximum age remained 74 years.
    • NHANES I
      Conducted from 1971-1974, the National Health Examination Survey added a nutrition component and was renamed the National Health and Nutrition Examination Survey (NHANES I). The first NHANES focused on the U.S. population aged 1-74. In 1974-1975, there was an augmentation to the survey on an additional national sample.  This augmentation sample only included adults aged 25-74 and did not oversample any population groups nor include nutrition data.
    • NHES III
      Conducted from 1966-1970, the third National Health Examination Survey (NHES III) focused on the growth and development of U.S. adolescents aged 12-17. Approximately 1/3 of the examined adolescents in NHES III were previously examined in NHES II.
    • NHES II
      Conducted from 1963-1965, the second National Health Examination Survey (NHES II) focused on the growth and development in U.S. children aged 6-11.
    • NHES I
      Conducted from 1959-1962, the first National Health Examination Survey (NHES I) focused on chronic disease in the U.S. population aged 18-79.
  • Other NHANES Data
  • Survey Methods

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