Potentially Inappropriate Medication and Health Care Outcomes: An Instrumental Variable Approach.

ABSTRACT:

Objective

To examine the effects of potentially inappropriate medication (PIM) use on health care outcomes in elderly individuals using an instrumental variable (IV) approach.

Data sources/study setting

Representative claim data from the universal health insurance program in Taiwan from 2007 to 2010.

Study design

We employed a panel study design to examine the relationship between PIM and hospitalization. We applied both the naive generalized estimating equation (GEE) model, which controlled for the observed patient and hospital characteristics, and the two-stage residual inclusion (2SRI) GEE model, which further accounted for the unobserved confounding factors. The PIM prescription rate of the physician most frequently visited by each patient was used as the IV.

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SUBMITTER: Chen CC 

PROVIDER: S-EPMC4946035 | biostudies-literature | 2016 Aug

REPOSITORIES: biostudies-literature