National Hospital Ambulatory Medical Care Survey, 1995 (ICPSR 2422)
The National Hospital Ambulatory Medical Care Survey (NHAMCS) was inaugurated in 1992 to fill a gap in data about ambulatory medical care in the United States. Although the National Ambulatory Medical Care Survey (NAMCS) collects annual data on patient visits to physician offices, it excludes the hospital emergency room and outpatient department visits that make up a large part of the total ambulatory care received each year. The NHAMCS provides data from samples of patient records selected from emergency departments (EDs) and outpatient departments (OPDs) of a national sample of hospitals. The resulting national estimates describe the use of hospital ambulatory medical care services in the United States. For the 1995 survey, data were collected from 230 OPDs and 391 EDs. Among the variables included are age, race, and sex of the patient, reason for the visit, physician's diagnoses, cause of injury (ED only), surgical procedures (OPD only), medication therapy, and expected source of payment.
The public-use data files in this collection are available for access by the general public. Access does not require affiliation with an ICPSR member institution.
U.S. Dept. of Health and Human Services, National Center for Health Statistics. NATIONAL HOSPITAL AMBULATORY MEDICAL CARE SURVEY, 1995. Hyattsville, MD: U.S. Dept. of Health and Human Services, National Center for Health Statistics [producer], 1995. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 1998. https://doi.org/10.3886/ICPSR02422.v1
Persistent URL: https://doi.org/10.3886/ICPSR02422.v1
Scope of Study
Subject Terms: ambulatory care, health care services, hospitalization, hospitals, emergency services, injuries, medical care, medical evaluation, medical procedures, medical records, patient care, patients, payment methods, surgery, treatment
Geographic Coverage: United States
(1) This collection has not been processed by ICPSR staff. ICPSR is distributing the data and documentation for this collection in essentially the same form in which they were received. When appropriate, hardcopy documentation has been converted to machine-readable form and variables have been recoded to ensure respondents' anonymity. (2) Per agreement with NCHS, ICPSR distributes the data file(s) and technical documentation in this collection in their original form as prepared by NCHS.
Restrictions: In preparing the data file(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 and 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: 1998-11-16
- 2006-01-18 File CB2422.ALL was removed from any previous datasets and flagged as a study-level file, so that it will accompany all downloads.
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