Related Experiment Video
Updated: Oct 22, 2026

Inverse Probability of Treatment Weighting (Propensity Score) using the Military Health System Data Repository and National Death Index
Published on: January 8, 2020
Analysis of variations in hospital use by Medicare patients in PSRO areas, 1974-1977
Abstract:
A study of the use of short-stay hospitals in PSRO areas by Medicare enrollees aged 65 and over for the period 1974 through 1977 revealed that discharge rates increased, average length of stay (ALOS) decreased, and days-of-care rates remained relatively constant in nearly all of the PSRO areas. The data show large variations in hospital use in PSRO areas within States and HEW regions, and suggest that factors within the area are critical determinants of hospital utilization. This study presents important implications for PSRO program policy for it suggests that factors other than physician and hospital behavior should also be considered when setting objectives for reducing misutilization and improving the quality of health care.
Related Concept Videos
Methods of Documentation II: POMR
Methods of Documentation I: Source-Oriented Records
In an SOR, each discipline involved in patient care maintains a separate medical record section. This record-keeping method enables easy tracking of patient progress and ensures healthcare staff have access to up-to-date information.
Key Attributes include the following:
Documentation in Long-Term and Home Healthcare Setting
Long-Term Care Facilities
Analysis of Population Pharmacokinetic Data
Hospitals-I
Methods of Documentation VI: Case Management Model
For example, a patient with a chronic illness...