10.3886/ICPSR06222.v1 United States Department of Health and Human Services. National Center for Health Statistics Inter-university Consortium for Political and Social Research 1994 demographic characteristics health care facilities hospitalization hospitals illness medical care medical evaluation medical procedures medical records patients payment methods treatment 1994-03-10 1994-03-10 administrative records data 6222 1 The National Hospital Discharge Survey (NHDS) collects medical and demographic information annually from a sample of hospital discharge records. Variables include the 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.