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- Title
Multimorbidity, polypharmacy and primary prevention in community-dwelling adults in Quebec: a cross-sectional study.
- Authors
Nguyen, Tu N; Ngangue, Patrice; Haggerty, Jeannie; Bouhali, Tarek; Fortin, Martin
- Abstract
<bold>Background: </bold>Polypharmacy carries the risk of adverse events, especially in people with multimorbidity.<bold>Objective: </bold>To investigate the prevalence of polypharmacy in community-dwelling adults, the association of multimorbidity with polypharmacy and the use of medications for primary prevention.<bold>Methods: </bold>Cross-sectional analysis of the follow-up data from the Program of Research on the Evolution of a Cohort Investigating Health System Effects (PRECISE) in Quebec, Canada. Multimorbidity was defined as the presence of three or more chronic diseases and polypharmacy as self-reported concurrent use of five or more medications. Primary prevention was conceptualized as the use of statin or low-dose antiplatelets without a reported diagnostic of cardiovascular disease.<bold>Results: </bold>Mean age 56.7 ± 11.6, 62.5% female, 30.3% had multimorbidity, 31.9% had polypharmacy (n = 971). The most common drugs used were statins, renin-angiotensin system inhibitors and psychotropics. Compared to participants without any chronic disease, the adjusted odds ratios (ORs) for having polypharmacy were 2.78 [95% confidence interval (CI): 1.23-6.28] in those with one chronic disease, 8.88 (95% CI: 4.06-19.20) in those with two chronic diseases and 25.31 (95% CI: 11.77-54.41) in those with three or more chronic diseases, P < 0.001. In participants without history of cardiovascular diseases, 16.2% were using antiplatelets and 28.5% were using statins. Multimorbidity was associated with increased likelihood of using antiplatelets (adjusted OR: 2.98, 95% CI: 1.98-4.48, P < 0.001) and statins (adjusted OR: 3.76, 95% CI: 2.63-5.37, P < 0.001) for primary prevention.<bold>Conclusion: </bold>There was a high prevalence of polypharmacy in community-dwelling adults in Quebec and a strong association with multimorbidity. The use of medications for primary prevention may contribute to polypharmacy and raise questions about safety.
- Subjects
QUEBEC (Quebec); COMORBIDITY; RENIN-angiotensin system; CROSS-sectional method; POLYPHARMACY
- Publication
Family Practice, 2019, Vol 36, Issue 6, p706
- ISSN
0263-2136
- Publication type
journal article
- DOI
10.1093/fampra/cmz023