Association between hospital-physician vertical integration and medication adherence rates.

ABSTRACT:

Objective

To test the association between vertical integration of primary care providers (PCPs) and adherence rates for anti-diabetics, renin angiotensin system antagonists (RASA), and statins.

Data sources

Medicare Part B outpatient fee-for-service claims and Medicare Part D event data from 2014 to 2017.

Study design

We estimated difference-in-differences regressions, comparing changes in adherence among patients with PCPs who converted from independent to integrated to changes among patients whose PCPs remained independent or integrated during the study period. To test for heterogenous impacts by patient demographics, we estimated triple difference regressions that included additional interaction terms by comorbidity rates, age group, and race/ethnicity.

Extracti

SUBMITTER: Levin JS 

PROVIDER: S-EPMC10012217 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature