The impact of Medicare Part D on hospitalization rates.

ABSTRACT:

Objective

To determine whether the change in prescription drug insurance coverage associated with Medicare Part D reduced hospitalization rates for conditions sensitive to drug adherence.

Data sources/study setting

Hospital discharge data from 2005 to 2007 for 23 states, linked with state-level data on drug coverage.

Study design

We use a difference-in-difference-in-differences approach, comparing changes in the probability of hospitalization before and after the introduction of the Part D benefit in 2006, for individuals aged 65 and older (versus individuals aged 60-64) in states with low drug coverage in 2005 (versus those in states with high pre-Part D drug coverage).

Data collection/extraction methods

Hospitalization rates for selected ambulatory care sensi

SUBMITTER: Afendulis CC 

PROVIDER: S-EPMC3165176 | biostudies-literature | 2011 Aug

REPOSITORIES: biostudies-literature