National Ambulatory Medical Care Survey, 1981 (ICPSR 8386)
Principal Investigator(s): United States Department of Health and Human Services. National Center for Health Statistics
The National Ambulatory Medical Care Surveys (NAMCS) supply data on ambulatory medical care provided in physicians' offices. The 1981 survey contains information from approximately 43,000 patient visits to 1,807 physicians. Data are available on the patient's reason for the visit, the physician's diagnosis, and the kinds of diagnostic and therapeutic services rendered. Information is included on the physician's specialization and geographical location. Demographic information on patients, such as age, sex, race, and ethnicity, was also collected.
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United States Department of Health and Human Services. National Center for Health Statistics. National Ambulatory Medical Care Survey, 1981. ICPSR08386-v1. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2008-09-12. http://doi.org/10.3886/ICPSR08386.v1
Persistent URL: http://doi.org/10.3886/ICPSR08386.v1
Scope of Study
Geographic Coverage: United States
Date of Collection:
Universe: Office visits made in the United States by patients of physicians who were based in offices, principally engaged in patient care, nonfederally employed, and not practicing in the specialties of anesthesiology, pathology, or radiology.
Data Types: survey data, and administrative records data
Data Collection Notes:
(1) Per agreement with NCHS, ICPSR distributes the data file and text of the technical documentation in this collection in their original form as prepared by NCHS.
Sample: National multistage probability sample.
patient records and self-enumerated questionnaires
Restrictions: In preparing the data file for this collection, 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.
Original ICPSR Release: 1985-10-09
- 2008-09-12 SAS, SPSS, and Stata setup files have been added to this data collection.
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