National hospital discharge survey, 1989
By: United States Department of Health and Human Services [and] National Center for Health Statistics
Series: ICPSR -- 6224; ICPSR (Series) -- 6224
Publisher: Inter-university Consortium for Political and Social Research [distributor
Published: 1993
Place of publication: Ann Arbor, Mich
Format: [computer file] : /
Subjects: Hospital utilization; Medical records
Description: The National Hospital Discharge Survey (NHDS), which is part of a continuing sample of hospital discharge records, provides medical and demographic information used to calculate statistics on hospital utilization. This survey consists of data abstracted from a national sample of nonfederal short-stay hospitals. The variables include information on the patient's demographic characteristics, dates of admission and discharge, status at discharge, diagnoses, procedures performed, and source of payment. Information on hospital characteristics, such as bedsize, ownership, and region of the country, also is included.
Notes: Title from codebook.

Holding archive: National Archive of Computerized Data on Aging.

ICPSR data class: Class IV.

Numerical data.

United States.

System requirements: at least an IBM 370 or equivalent mainframe.

The data contain ampersands (&), dashes (-), and blanks.

In 1988 the NHDS was redesigned to provide geographic sampling comparability with other surveys conducted by the National Center for Health Statistics (NCHS), to update the sample of hospitals selected into the survey, and to maximize the use of data collected through automated systems. The sample included with certainty all hospitals with 1,000 or more beds or 40,000 or more discharges annually. The remaining sample of hospitals is based on a stratified three-stage design. The first stage consists of a selection of 112 primary sampling units (PSU's) that comprise a selection of 112 probability subsample of PSU's used in the 1985-1994 National Health Interview Surveys. The second stage consists of a selection of non-certainty hospitals from the sample PSU's. At the third stage a sample of discharges was selected by a systematic random sampling technique. For 1989, the NHDS sampling frame consists of eligible hospitals which began accepting inpatients before Sept. 1, 1987, and were listed in the April 1987 SMG Hospital Market Data Tape (SMG Marketing Group, Inc. 1989).