Managed care and the diffusion of endoscopy in fee-for-service Medicare.

ABSTRACT:

Objective

To determine whether Medicare managed care penetration impacted the diffusion of endoscopy services (sigmoidoscopy, colonoscopy) among the fee-for-service (FFS) Medicare population during 2001-2006.

Methods

We model utilization rates for colonoscopy or sigmoidoscopy as impacted by both market supply and demand factors. We use spatial regression to perform ecological analysis of county-area utilization rates over two time intervals (2001-2003, 2004-2006) following Medicare benefits expansion in 2001 to cover colonoscopy for persons of average risk. We examine each technology in separate cross-sectional regressions estimated over early and later periods to assess differential effects on diffusion over time. We discuss selection factors in managed care markets and how

SUBMITTER: Mobley LR 

PROVIDER: S-EPMC3227000 | biostudies-literature | 2011 Dec

REPOSITORIES: biostudies-literature