National Archive of Computerized Data on Aging

National Ambulatory Medical Care Survey, 1976 (ICPSR 9194) RSS

Principal Investigator(s):

Summary:

The National Ambulatory Medical Care Surveys (NAMCS) supply data on ambulatory medical care provided in physicians' offices. These national estimates describe the utilization of ambulatory medical care and the nature and treatment of illness among the population seeking ambulatory care. The survey includes data on date of visit, reason for visit, date of birth, sex and race of patient, diagnosis, treatment, disposition of visit, and the physician's specialty.

Series: National Ambulatory Medical Care Survey Series

Access Notes

  • These data are available only to users at ICPSR member institutions. Because you are not logged in, we cannot verify that you will be able to download the data.

  • This study is provided by ICPSR. ICPSR provides leadership and training in data access, curation, and methods of analysis for a diverse and expanding social science research community.

Dataset(s)

Dataset - Download All Files (18.3 MB)
Documentation:

Study Description

Citation

United States Department of Health and Human Services. National Center for Health Statistics. National Ambulatory Medical Care Survey, 1976. ICPSR09194-v1. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2008-09-12. http://doi.org/10.3886/ICPSR09194.v1

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Scope of Study

Subject Terms:   ambulatory care, doctor visits, health care services, medical care, medical evaluation, medical records, medications, patient care, patients, physicians, prescription drugs, treatment

Geographic Coverage:   United States

Time Period:  

  • 1976

Universe:   Office visits to nonfederally employed physicians classified by the American Medical Association (AMA) or the American Osteopathic Association (AOA) as "office-based patient care" (excluding specialties of anesthesiology, pathology, and radiology) from 87 Primary Sampling Units (PSUs) in the United States.

Data Types:   survey data

Data Collection Notes:

(1) The medical information is coded using the EIGHTH REVISION INTERNATIONAL CLASSIFICATION OF DISEASES, ADAPTED FOR USE IN THE UNITED STATES (ICDA).

Methodology

Sample:   Stratified multistage probability design. In the first stage the PSUs were selected by a modified probability proportional-to-size procedure using separate sampling frames for SMSAs and for nonmetropolitan counties. The second stage consisted of a probability sample in 1976 of 3,022 practicing physicians selected from the master files maintained by the AMA and AOA. Within each PSU, all eligible physicians were stratified by nine specialty groups. The groups are: general/family practice, internal medicine, pediatrics, other medical specialties, general surgery, obstetrics/gynecology, other surgical specialties, psychiatry, and other specialties. The number physicians in scope and agreeing to participate was 2,004. The final stage was the selection of patient visits within the annual practices of sample physicians. This involved two steps. First, the total physician sample was divided into 52 with each group randomly assigned to 1 of the 52 weeks in the survey year. Second, a systematic random sample of visits was selected by the physician during the assigned week. The total number of patient records for these visits was 52,224.

Data Source:

physician-enumerated forms, and induction interviews with physicians

Version(s)

Original ICPSR Release:  

Version History:

  • 2008-09-12 SAS, SPSS, and Stata setup files have been added to this data collection.

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