Catalog of Holdings

Study Report

Study Number: QG-015-022-1-1-United States-ICPSR-1987

Subject Area: Medical and Health

Bibliographic Citation: National medical expenditure survey, 1987: survey of American Indian and Alaska Natives, preliminary ambulatory medical visit data [public use tape 23.5P].  [machine-readable data file] / U.S. Department of Health and Human Services. Agency for Health Care Policy and Research  [principal investigator(s)] / Ann Arbor, MI: Inter-university Consortium for Political and Social Research  [distributor].

Originating Archive Number: 6221

Date Accessioned: 4/15/1994

Number of Files Received: 5

Comments: Note: variable locations not available in hard copy documentation.

Access Status: Access limited to UW-Madison campus

Date Ordered: 4/2/1994

Documentation: Volume I is hard copy. Volume II (data dictionary) is machine-readable only; SAS control cards.

Abstract: The National Medical Expenditure Survey (NMES) series provides information on health expenditures by or on behalf of families and individuals, the financing of these expenditures, and each person's use of services. The Survey of American Indians and Alaska Natives (SAIAN) was designed in collaboration with the Indian Health Service (IHS), and used the same data collection instruments, interview procedures, and time frame as the NMES Household Survey component. However, the SAIAN differed from the Household Survey in several respects. The SAIAN sample was interviewed only three times and was not given the supplements on long-term care, caregiving, and care-receiving. Also, SAIAN respondents were asked additional questions on topics such as use of IHS facilities and traditional medicine, and were given a modified self-administered questionnaire with separate versions for adults and children. Interviewers for the SAIAN were mainly American Indians or Alaska Natives, and about 20 percent of the interviews were not conducted entirely in English. Of these, approximately 40 percent were conducted entirely in the native language of the respondent. Public Use Tape 23.5 provides three data files containing information on the use of and expenditures for ambulatory medical services and sources of payment reported in the SAIAN Survey. An ambulatory visit is defined as a single contact with a medical provider for one or more services in either a hospital outpatient department or emergency room, a setting other than an inpatient hospital (such as a physician's office, a clinic, or a lab), a nursing home, or a person's home. The first file includes visits and telephone calls to physicians' offices (including HMOs and health departments) in settings other than a hospital or at home, and to providers of care (e.g., chiropractors and psychologists). The second file covers visits to hospital outpatient departments, while the third file provides information on visits to hospital emergency rooms, both regardless of provider type. A record on any of these data files represents a unique ambulatory visit. Variables include dates of visits, medical conditions associated with the visit, types of procedures performed, and the main reason for the visit. In addition, each file contains demographic information such as age, sex, and race.

SOURCE: personal interviews

UNIVERSE: Civilian, noninstitutionalized American Indians and Alaska Natives, living on or near federal reservations, who were eligible to receive care provided or supported by the Indian Health Service, and who had at least one ambulatory medical visit, regardless of facility.

SAMPLE: The sample is a stratified area probability design with three stages of sample selection: (1) selection of primary sampling units (PSUs), which are counties or groups of contiguous counties (in Alaska, the county equivalents developed by the state of Alaska and the Census Bureau for statistical purposes were employed), (2) selection of segments within PSUs, (3) selection and screening of dwelling units within segments. Based on the results of the screening, all dwelling units including persons eligible for IHS services were selected in the SAIAN. The sample frame included all counties in the United States including or adjacent to reservations of federally-recognized tribes or Alaska Native villages. For cost considerations, the sample frame was truncated to remove counties with the lowest concentrations of eligible persons, and disproportionate sampling was applied to remaining counties with low concentrations of American Indians.

NOTE: The principal investigator notes that the data in Public Use Tape 23.5P are preliminary in nature and are being released prior to final cleaning and editing, in order to provide access to information from the SAIAN. Records in these files can be linked to other public use datasets from the SAIAN using the person identifier (PIDX). The file also contains, for each person, basic demographic characteristics as established in the SAIAN. This collection is superseded by NATIONAL MEDICAL EXPENDITURE SURVEY, 1987: SURVEY OF AMERICAN INDIANS AND ALASKA NATIVES, POPULATION DATA, DATA FROM THE HEALTH STATUS QUESTIONNAIRE AND ACCESS TO CARE SUPPLEMENT, AND EXPENDITURES AND SOURCES OF PAYMENT DATA [PUBLIC USE TAPE 37] (ICPSR 6490).

EXTENT OF COLLECTION: 3 data files + machine-readable documentation (text) + database dictionary + SAS Control Cards.

DATA TYPE: survey data

DATA FORMAT: LRECL with SAS Control Cards

TIME PERIOD: January 1-December 31, 1987

DATE OF COLLECTION: 1987

EXTENT OF PROCESSING BY ICPSR: NONNUM/ BLANKS/ MDATA/ FREQ.PI

Media/File Reports:

ICPSR Direct