National Center for Health Statistics. 1977 and 1978. National Center for Health Statistics. National Center for Health Statistics. The sample design provides for oversampling among children 24-35 months of age, people 70 years of age and over, black Americans, and Mexican Americans.
Race is reported for the household by the respondent.
National Center for Health Statistics. Plan and Operation of the Third National Health and Nutrition Examination Survey, 1988-94. National Center for Health Statistics. National Center for Health Statistics, Health, United States, 1996-97 and Injury Chartbook. The Hispanic ethnicity of these populations was determined by self-report.