Fall Risk Increasing Drugs: The Effect on Injuries of the Frail Elderly Estimated from Administrative Data

Thomas Bauer (), Katharina Lindenbaum, Magdalena A. Stroka, Susanne Ahrens, Roland Linder and Frank Verheyen

No 302, Ruhr Economic Papers from RWI - Leibniz-Institut für Wirtschaftsforschung, Ruhr-University Bochum, TU Dortmund University, University of Duisburg-Essen

Abstract: Society benefits on a large scale from improved medical care and pharmaceuticals. The prescription of pharmaceuticals, however, also carries risks such as the possibility of an increased risk of falls, which may lead to severe injuries and increased health expenditures associated with these injuries. This study investigates the influence of several fall risk increasing drugs (FRIDs) on the number of injuries of elderly persons using multivariate regression models. Routine data from the Techniker Krankenkasse (TK) of frail elderly persons aged Ï 65 years is analyzed for the year 2009 by estimating count data models, in order to take the data generating process of the number of injuries into account. The results of the count data model are compared to those from logistic regressions, which is the default regression model in this fi eld of research. The empirical results suggest that antidepressants, anxiolytics, hypnotics and sedatives, antiarrhythmics, and drugs from the Priscus-list have a signifi cant positive effect on the number of injuries, while antihypertensives and anti-parkinsonian agents show no and neuroleptics a significant negative eff ect. As recurrent injuries are common, the analysis of the number of injuries rather than just the probability of having an injury provides a more informative analysis of FRIDs.

Keywords: Fall risk increasing drugs; Priscus-List; frail elderly; multivariate regression; count data models; Fall risk increasing drugs; Priscus-List; frail elderly; multivariate regression; count data models (search for similar items in EconPapers)
JEL-codes: I12 I19 (search for similar items in EconPapers)
Date: 2011
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Persistent link: https://EconPapers.repec.org/RePEc:zbw:rwirep:302

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