National Hospital Discharge Survey, 1998

Resource Type
Dataset : administrative records data
  • United States Department of Health and Human Services. National Center for Health Statistics
Other Title
  • Version 1 (Subtitle)
Collective Title
  • National Hospital Discharge Survey Series
Publication Date
Free Keywords
demographic characteristics; health care facilities; hospitalization; hospitals; illness; medical care; medical evaluation; medical procedures; medical records; patients; payment methods; treatment
  • Abstract

    The National Hospital Discharge Survey (NHDS) collects medical and demographic information annually from a sample of hospital discharge records. Variables include patients' demographic characteristics (sex, age, race, marital status), dates of admission and discharge, status at discharge, final diagnoses, surgical and nonsurgical procedures, dates of surgeries, and sources of payment. Information on hospital characteristics such as bedsize, ownership, and region of the country is also included. The medical information is coded using the INTERNATIONAL CLASSIFICATION OF DISEASES, 9TH REVISION, CLINICAL MODIFICATION (ICD-9-CM).
  • Table of Contents


Temporal Coverage
  • Time period: 1998
  • Collection date: 1998
Geographic Coverage
  • United States
Sampled Universe
Patient discharges from nonfederal short-stay hospitals located in the 50 states and the District of Columbia.
The redesigned (as of 1988) NHDS sample includes 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 selection of 112 primary sampling units (PSUs) that comprise a probability subsample of PSUs used in the 1985-1994 National Health Interview Surveys. The second stage consists of selection of noncertainty hospitals from the sample PSUs. At the third stage, a sample of discharges was selected by a systematic random sampling technique. For 1998, the sample consisted of 513 hospitals. Of these, 18 were found to be ineligible. Of the 495 eligible hospitals, 478 hospitals responded to the survey.
Collection Mode
  • (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. (2) The codebook is 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.

This study is freely available to the general public via web download.
Alternative Identifiers
  • 3003 (Type: ICPSR Study Number)
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  • Popovic, Jennifer R., Kozak, Lola Jean. National Hospital Discharge Survey: Annual Summary, 1998. Vital and Health Statistics, Series 13: Data From the National Health Survey.148, Hyattsville, MD: National Center for Health Statistics. 2000.
    • ID: (URL)

Update Metadata: 2015-08-05 | Issue Number: 6 | Registration Date: 2015-06-15