National Archive of Computerized Data on Aging

National Ambulatory Medical Care Survey, 1998 (ICPSR 2915)

Principal Investigator(s):

Summary:

The National Ambulatory Medical Care Surveys (NAMCS) supply data on ambulatory medical care provided in physicians' offices. The 1998 survey contains information from 24,715 patient visits to 1,247 physicians' offices. Data are available on the patient's smoking habits, reason for the visit, expected source of payment, the physician's diagnosis, and the kinds of diagnostic and therapeutic services rendered. Other variables cover drugs/medications ordered, administered, or provided during office visits, with information on medication code, generic name and code, brand name, entry status, prescription status, federal controlled substance status, composition status, and related ingredient codes. Information is also included on the physician's specialization and geographic location. Demographic information on patients, such as age, sex, race, and ethnicity, was also collected.

Series: National Ambulatory Medical Care Survey Series

Access Notes

  • These data are freely available.

Dataset(s)

Dataset - Download All Files (14.3 MB)
Documentation:
Data:

Study Description

Citation

U.S. Dept. of Health and Human Services, National Center for Health Statistics. NATIONAL AMBULATORY MEDICAL CARE SURVEY, 1998. ICPSR version. Hyattsville, MD: U.S. Dept. of Health and Human Services, National Center for Health Statistics [producer], 2000. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2000. http://doi.org/10.3886/ICPSR02915.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, smoking, treatment

Geographic Coverage:   United States

Time Period:  

  • 1998

Date of Collection:  

  • 1998

Universe:   Office visits made within the United States by patients of nonfederally-employed physicians who were primarily involved in office-based patient care activities, but not engaged in the specialties of radiology, pathology, or anesthesiology.

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 for this collection as prepared by NCHS. (2) The codebook and data collection instrument are provided as a Portable Document Format (PDF) file. The PDF file format was developed by Adobe Systems Incorporated and can be accessed using PDF reader software, such as the Adobe Acrobat Reader. Information on how to obtain a copy of the Acrobat Reader is provided on the ICPSR Website.

Methodology

Sample:   The 1998 NAMCS utilized a multistage probability sample design. Primary sampling units (PSUs) were selected in the first stage, physician practices within PSUs in the second stage, and patient visits to selected physicians in the third stage.

Data Source:

questionnaires completed by physicians

Version(s)

Original ICPSR Release:  

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