Changes in screening colonoscopy following Medicare reimbursement and cost-sharing changes.

ABSTRACT:

Objectives

To compare existing algorithms for classifying screening vs diagnostic colonoscopies and to quantify the increase in screening colonoscopy rates when Medicare began reimbursement in 2001 and when the Affordable Care Act (ACA) eliminated cost-sharing.

Data sources

Twenty percent random sample of fee-for-service (FFS) Medicare claims, 2000-2012.

Study design

Using recent administrative codes as tarnished gold standards, we examined the sensitivity and specificity of five published algorithms for classifying colonoscopies and calculated annual screening colonoscopy rates. We estimated the change in rates after Medicare began reimbursement and used difference-in-differences analysis to estimate the effects of eliminating cost-sharing by comparing states with an

SUBMITTER: Song LD 

PROVIDER: S-EPMC6606542 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature