Community Hospital Program (CHP) Access Impact Evaluation Surveys, 1978-1979, 1981 (ICPSR 8245)

Published: Jan 12, 2006

Principal Investigator(s):
Ronald M. Andersen; Lu Ann Aday

Version V1

This data collection evaluates group medical practices and the ways in which they affect both access to and use of medical services. Group practices, sponsored by the Robert Wood Johnson Foundation Community Hospital Program (CHP), were selected for use in this assessment. The data were collected by the Center for Health Administration Studies at the University of Chicago, with the assistance of Chilton Research Services. Two surveys were conducted for the study: a baseline survey in 1978-1979 and a follow-up in 1981. Community residents and CHP patients in 12 communities were interviewed. Demographic and medical care data were collected for selected individuals and families in the survey areas. Data on regular sources of medical care for individuals include the type of organization used, type of practice, accessibility, frequency of visits, types of health care professionals seen, cost, and satisfaction. Also in the collection are data on perceived health, episodes of illness (including symptoms, duration, disability days, and doctors consulted), use of preventive health care services, and insurance coverage. Demographic data for individuals and families include age, sex, race, educational attainment, employment, and income. Of the 198 files in this collection, 88 are "raw" data files and 110 are frequencies. The data files consist of four types. The first type are Sample Person files. These contain the responses of group practice patients and community members. The second type are Doctor Episode files, which record doctors and episodes of illness. Family files make up the third type of file, and consist of family members' responses to the survey. Analysis files, linking patient and doctor data, are the fourth type of file. The SPSS frequency files correspond to the data files: two per file for the Sample Person files, and one per file for the remaining three types of files.

Andersen, Ronald M., and Aday, Lu Ann. Community Hospital Program (CHP) Access Impact Evaluation Surveys, 1978-1979, 1981. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2006-01-12.

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Robert Wood Johnson Foundation (3163, 3869)

1978 -- 1979


1978 -- 1979


Produced by Chilton Research Services and the University of Chicago, Center for Health Administration Studies, 1984.

An area probability sample of the Community Hospital Program's service areas and a list sample of patients who had been to the site at the time of the baseline (1978-1979) and follow-up (1981) surveys were drawn at each time period.

Community residents and Community Hospital Program patients in 12 selected study communities at two points in time: 1978-1979 and 1981.

personal interviews

survey data



2006-01-12 All files were removed from dataset 199 and flagged as study-level files, so that they will accompany all downloads.


  • The public-use data files in this collection are available for access by the general public. Access does not require affiliation with an ICPSR member institution.

  • The citation of this study may have changed due to the new version control system that has been implemented.
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This study is maintained and distributed by the Health and Medical Care Archive (HMCA). HMCA is the official data archive of the Robert Wood Johnson Foundation.