Association between Development of Dementia and Use of Benzodiazepines: A Systematic Review and Meta‐Analysis

Pharmacotherapy - Tập 38 Số 10 - Trang 1010-1020 - 2018
Rosa Camila Lucchetta1, Barbara Paes Miglioli da Mata2, Patrícia de Carvalho Mastroianni2
1Pharmacy, Federal University of Paraná 632, Av. Prefeito Lothário Meissner Curitiba Paraná Brazil
2Drugs and Medicine Universidade Julio de Mesquita Filho – Unesp Araraquara São Paulo Brazil

Tóm tắt

Study ObjectiveThe use of benzodiazepines and the development of dementia is controversial, with studies indicating that benzodiazepines could be either a protective factor or a risk factor for dementia, or no association may exist between the two. Our objective was to identify whether such an association exists.DesignSystematic review and meta‐analysis of 12 prospective and retrospective cohort studies and case‐control studies.ParticipantsA total of 981,133 (in the systematic review) and 980,860 (in the meta‐analysis) adults or elderly individuals.Measurements and Main ResultsA search of the PubMed, LILACS, and Cochrane Central Register of Controlled Trials databases, as well as a manual search of the reference lists of the included publications and reviews, was performed. We included studies that reported the incidence of dementia and in ever users of benzodiazepines. Data were analyzed by using a random effects model in R software. Quality of the evidence was assessed with the Grading of Recommendations Assessment, Development and Evaluation (GRADE) certainty ratings system. The results of the main meta‐analysis suggest that benzodiazepines can be a risk factor for developing dementia (odds ratio 1.38, 95% confidence interval 1.07–1.77; I2 = 98%; 95% prediction interval 0.58–3.25; very low certainty).ConclusionOur results suggest an association between the use of benzodiazepines and the development of dementia. However, the current evidence lacks the power to infer differences between the effects of Alzheimer's disease and vascular dementias, long‐acting and short‐acting benzodiazepines, and various exposure loads (duration and dose). Future long‐term prospective cohort studies are necessary, with adequate adjustments for confounding variables, strategies to minimize reverse causality, reporting of subgroups aimed at greater homogeneity of findings, adequate statistical power to identify high‐magnitude effects, and defined daily dose analyses for dose‐response gradient.

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Pharmacotherapy

Tập 38 Số 10

1010-1020

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