Effects of Preferred Provider Organizations on Health Care Use and Costs: Pooled Cross-Sectional Time Series, First Quarter 1988 Through First Quarter 1990 (ICPSR 6373)
Principal Investigator(s): Smith, Dean G.
This research project studied the effects of Preferred Provider Organizations (PPOs) on health care use and costs in comparison with indemnity health care plans and indemnity plans with utilization review (UR). The data cover nine quarters of a single insurer's claims experience with these types of health care plans. The unit of observation is the employer group covered by a given plan. Variables describing claims experience include number of claims, reimbursed costs after copayments and deductibles, hospital expenditures, number of hospital admissions, percent of claims in different diagnostic categories (surgery, tumors, births, and mental health), and number of tonsillectomy/adenoidectomy and colonoscopy cases. Reported characteristics of these groups include coinsurance rates, plan type, industry of employer, group mean age, percent of covered lives with dental or prescription drug coverage, and percent of covered lives that were women or dependents. In addition, the data contain variables describing the market in which each group was located, such as number of hospital beds in the city or county, number of hospitals and health maintenance organizations in the metropolitan statistical area, median rental cost for housing units in the city or county, percent of county or city that was Black or age 65 or older, number of nonfederal physicians in the county, and number of PPOs in the state.
These data are freely available.
Smith, Dean G. Effects of Preferred Provider Organizations on Health Care Use and Costs: Pooled Cross-Sectional Time Series, First Quarter 1988 Through First Quarter 1990. ICPSR06373-v1. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 1998. doi:10.3886/ICPSR06373.v1
Persistent URL: http://doi.org/10.3886/ICPSR06373.v1
This study was funded by:
- Robert Wood Johnson Foundation (20040)
Scope of Study
Subject Terms: employee benefits, health care costs, health care facilities, health care services, health expenditures, health insurance, health maintenance organizations, health services utilization, hospitals, insurance claims, insurance coverage
Geographic Coverage: United States
Date of Collection:
Universe: All employers served by a major nationwide health insurer who offered a single plan (either PPO, indemnity, or indemnity with UR) to employees during first quarter 1988 through first quarter 1990. Employer-held minimum premium plans were excluded.
Data Types: administrative records data
Data Collection Notes:
(1) The SAS transport files were produced by the SAS CPORT procedure.
Original ICPSR Release: 1995-10-30
- 2006-01-12 All files were removed from dataset 8 and flagged as study-level files, so that they will accompany all downloads.
- 2006-01-12 All files were removed from dataset 7 and flagged as study-level files, so that they will accompany all downloads.
- 1998-05-01 The codebook is now available as a PDF file.
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