National Health and Nutrition Examination Survey I, 1971-1975: Dermatology

The National Health and Nutrition Examination Surveys (Cycle I) were designed to measure the nutritional status and health of the U.S. population aged 1-74 years and to obtain more detailed information on the health status and medical care needs of adults aged 25-74 years in the civilian noninstitutionalized population.

国家健康与营养调查（第一周期）旨在衡量美国1至74岁人口的营养状况和健康状况，并获取有关25至74岁非机构化平民成年人的健康状况和医疗保健需求更为详细的信息。