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Title
Selection experiences in Medicare HMOs: Pre-enrollment expenditures
First Author
Call, Kathleen T
Date of Pub
1999 Summer
Pages
197-209
Volume
20
Issue
4
Other Authors
Dowd, Bryan; Feldman, Roger; Maciejewski, Matthew
Abstract
Using 1993 and 1994 data, the authors examine whether beneficiaries who enroll in a Medicare health maintenance organization (HMO), including those enrolling for only a short period of time, have lower expenditures than continuous fee-for-service (FFS) beneficiaries the year prior to enrollment. We also test whether biased selection varies by the level of HMO market penetration and the rate of market-share growth. We find favorable selection associated with enrollment into Medicare HMOs, which declines as market share increases but does not disappear. Among short-term enrollees, we find unfavorable selection, however, selection bias was not sensitive to market characteristics.
Abstract Continued
N/A
MeSH
Health Expenditures : Insurance Selection Bias : Aged : Evaluation Studies : Fee-for-Service Plans : Health Maintenance Organizations : Medicare : Regression Analysis : Risk Factors : Support, U.S. Gov't, non-P.H.S. : United States
NTIS Number
PB2000-102444