Changing patterns of surgical care in the United States, 1980-1995.

National inpatient and ambulatory surgery data were combined to examine changes over time in the location and amount of surgical care. The main pattern was a decline in the rate of inpatient operations that was outweighed by growth in ambulatory operations. However, the rate of inpatient operations did not decrease for patients age 65 years or over, despite the growth in ambulatory surgery.

Design and operation of the National Hospital Discharge Survey: 1988 redesign.

The National Hospital Discharge Survey (NHDS), a national probability sample survey of discharges from non-Federal hospitals, began in 1965 and has been conducted annually since then. The original design of NHDS was in place through 1987. This report provides information about the survey design, instruments, data collection procedures, and survey methodology used for NHDS since the implementation of its redesign in 1988.

Ambulatory and inpatient procedures in the United States, 1994.

Objectives: This report presents estimates of surgical and nonsurgical procedures performed in the United States during 1994. Data are presented by characteristics of patients, region of the country, and procedure categories for ambulatory and inpatient procedures separately and combined.

Methods: Estimates in this report are based on data collected from the National Hospital Discharge Survey (NHDS) and the National Survey of Ambulatory Surgery (NSAS).

Ambulatory surgery in the United States, 1994.

Objectives: This report presents estimates of surgical and nonsurgical procedures done on an ambulatory basis in hospitals and freestanding ambulatory surgery centers in the United States during 1994. Data are presented by types of facilities, age, sex, geographic region, and disposition for ambulatory surgery visits. Major categories of procedures and diagnoses are shown by age, sex, and region.