Use of a medication-based risk adjustment index to predict mortality among veterans dually-enrolled in VA and medicare.

ABSTRACT:

Background

There is systemic undercoding of medical comorbidities within administrative claims in the Department of Veterans Affairs (VA). This leads to bias when applying claims-based risk adjustment indices to compare outcomes between VA and non-VA settings. Our objective was to compare the accuracy of a medication-based risk adjustment index (RxRisk-VM) to diagnostic claims-based indices for predicting mortality.

Methods

We modified the RxRisk-V index (RxRisk-VM) by incorporating VA and Medicare pharmacy and durable medical equipment claims in Veterans dually-enrolled in VA and Medicare in 2012. Using the concordance (C) statistic, we compared its accuracy in predicting 1 and 3-year all-cause mortality to the following models: demographics only, demographics plus prescrip

SUBMITTER: Radomski TR 

PROVIDER: S-EPMC6814520 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature