National Health and Nutrition Examination Survey I, 1971-1975: Computer Measurements and Interpretations of Electrocardiograms (ICPSR 8065)

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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.

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In preparing the data tapes for these collections, the National Center for Health Statistics (NCHS) has removed direct identifiers and characteristics that might lead to identification of data subjects. As an additional precaution, NCHS requires, under section 308(d) of the Public Health Service Act (42 U.S.C. 242m), that data collected by NCHS not be used for any purpose other than statistical analysis and reporting. NCHS further requires that analysts not use the data to learn the identity of any persons or establishments and that the director of NCHS be notified if any identities are inadvertently discovered. ICPSR member institutions and other users ordering data from ICPSR are expected to adhere to these restrictions.