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National Hospital Discharge Survey, 1977 (ICPSR 9387)
Principal Investigator(s): United States Department of Health and Human Services. National Center for Health Statistics
The 1977 National Hospital Discharge Survey, which is part of a continuing sample of hospital discharge records, supplies medical and demographic information used to calculate statistics on hospital utilization. This survey consists of data abstracted from the face sheets of the medical records for sampled inpatients discharged from a national sample of nonfederal short-stay hospitals. The variables include information on the patient's demographic characteristics (sex, age, date of birth, race, marital status), dates of admission and discharge, status at discharge, diagnoses, procedures performed, source of payment, and hospital characteristics such as number of beds, ownership, and region of the country.
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U.S. Dept. of Health and Human Services, National Center for Health Statistics. NATIONAL HOSPITAL DISCHARGE SURVEY, 1977. Washington, DC: U.S. Dept. of Health and Human Services, National Center for Health Statistics [producer], 1981. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 1990. http://doi.org/10.3886/ICPSR09387.v1
Persistent URL: http://doi.org/10.3886/ICPSR09387.v1
Scope of Study
Subject Terms: demographic characteristics, health care facilities, hospitalization, hospitals, illness, medical care, medical evaluation, medical procedures, medical records, patients, payment methods, treatment
Geographic Coverage: United States
Date of Collection:
Universe: Patient discharged from short-stay, noninstitutional hospitals, exclusive of federal hospitals, which were located in the 50 states and the District of Columbia and were included in the National Master Facility Inventory of Hospitals and Institutions.
Data Types: clinical data, survey data
Data Collection Notes:
Per agreement with NCHS, ICPSR distributes the data file(s) and technical documentation in this collection in their original form as prepared by NCHS. The data contain ampersands (&), dashes (-), asterisks (*), and blanks.
Sample: All hospitals with 1,000 beds or more in the original universe of short-stay hospitals were selected with certainty in the sample. All hospitals with fewer than 1,000 beds were stratified, the primary stratum depending on size and geographic region. Within each of these 24 primary strata, the allocation of the hospitals was made through a controlled selection technique so that hospitals in the sample would be properly distributed with regard to type of ownership and geographic division. Sample hospitals were drawn with probabilities ranging from certainty for the largest hospitals to 1 in 40 for the smallest hospitals. Of the 535 hospitals in the sample, 423 were in scope and agreed to participate. The within-hospital sampling ratio for selecting sample discharges varied inversely with the probability of selection of the hospital. The smallest sampling fraction of discharged patients was taken in the largest hospitals, and the largest fraction was taken in the smallest hospitals. In nearly all hospitals, the daily listing sheet of discharges was the frame from which the subsamples of discharges were selected within the sample hospitals. The sample discharges were selected by a random technique, usually on the basis of the terminal digit(s) of the patient's medical record number--a number assigned when the patient was admitted.
official hospital records
Restrictions: In preparing the data tape(s) 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: 1990-12-04
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