National Hospital Discharge Survey, 1995 (ICPSR 2284)

Principal Investigator(s): United States Department of Health and Human Services. National Center for Health Statistics

Summary: 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 als... (more info)

Series: National Hospital Discharge Survey Series

• This data is freely available.

U.S. Dept. of Health and Human Services, National Center for Health Statistics. NATIONAL HOSPITAL DISCHARGE SURVEY, 1995. ICPSR02284-v2. Hyattsville, MD: U.S. Dept. of Health and Human Services, National Center for Health Statistics [producer], 1997. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2006-04-05. doi:10.3886/ICPSR02284.v2

Persistent URL: http://dx.doi.org/10.3886/ICPSR02284.v2

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Summary:   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).

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

Time Period:  

• 1995

Date of Collection:  

• 1995

Universe:   Patient discharges from nonfederal short-stay hospitals located in the 50 states and the District of Columbia.

Data Types:   administrative records data

Sample:   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 1995, the sample consisted of 525 hospitals. Of these, 17 were found to be ineligible. Of the 508 eligible hospitals, 466 hospitals responded to the survey.

You can find more information via the sample characteristics utility.

Data Source:

hospital records

Original ICPSR Release:  1998-03-02

Version History:

• 2006-04-05 The data have been reformatted.

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