10.3886/ICPSR09762.v2 United States Department of Health and Human Services. Centers for Disease Control and Prevention. National Center for Health Statistics Inter-university Consortium for Political and Social Research 1992 chronic disabilities chronic illnesses disabilities exercise health health care health care services health policy health problems illness physical fitness sports participation 1992-05-12 2010-11-10 clinical data; survey data 9762 2 The purpose of the National Health Interview Survey (NHIS) is to obtain information about the amount and distribution of illness, its effects in terms of disability and chronic impairments, and the kinds of health services people receive. The 1975 Physical Fitness Supplement provides variables from the core Person File (see HEALTH INTERVIEW SURVEY, 1975 [ICPSR 7672]) including sex, age, race, marital status, veteran status, education, income, industry and occupation codes, and limits on activity. The variables unique to this supplement include type of exercise in which respondent engaged (biking, calisthenics, jogging, lifting weights, swimming, walking), type of sports played (basketball, bowling, football, golf, softball, swimming, tennis), and level of participation (participant, team member, tournament).