Medication Regimen Complexity and Polypharmacy as Factors Associated With All-Cause Mortality in Older People
Open Access
- 17 December 2015
- journal article
- research article
- Published by SAGE Publications in Annals of Pharmacotherapy
- Vol. 50 (2), 89-95
- https://doi.org/10.1177/1060028015621071
Abstract
Objectives: To investigate whether medication regimen complexity and/or polypharmacy are associated with all-cause mortality in older people. Methods: This was a population-based cohort study among community-dwelling and institutionalized people ≥60 years old (n = 3348). Medication regimen complexity was assessed using the 65-item Medication Regimen Complexity Index (MRCI) in 10-unit steps. Polypharmacy was assessed as a continuous variable (number of medications). Mortality data were obtained from the Swedish National Cause of Death Register. Cox proportional hazard models were used to compute unadjusted and adjusted hazard ratios (HRs) and 95% CIs for the association between regimen complexity and polypharmacy with all-cause mortality over a 3-year period. Subanalyses were performed stratifying by age (≤80 and>80 years), sex, and cognition (Mini-Mental State Examination [MMSE] 80 years old or with MMSE 80 years old, or in those with MMSE<26. These different associations with mortality deserve further investigation.Keywords
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