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Adherence to antihypertensive drug treatment in Brazil: a systematic review and meta-analysis

Abstract

This article aims to evaluate the adherence to antihypertensive treatment prevalence in the Brazilian population based on peer-reviewed studies which used instruments exclusively designed and/or adapted for this purpose. A systematic review with meta-analysis based on the recommendations of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). The search was carried out in the BDENF, SciELO, Cuiden, PsycINFOe, CINAHL, Embase, LILACS, and MEDLINE databases, as well as the AgeLine, Google Scholar and ScienceDirect academic search engines. The protocol was registered with PROSPERO (CRD42021292689). Random effects models were used for a meta-analysis of the prevalence obtained from individual studies. A total of 104 studies were included in the meta-analysis on antihypertensive treatment in the Brazilian population, totaling 38,299 patients. The most used instrument was the four-item Morisky-Green Test (49.5%). The adherence prevalence estimated by the meta-analysis was 44.4% (95%CI: 39.12%-49.94%, I2 = 91.17, p < 0.001), showing high heterogeneity. The adherence to antihypertensive treatment prevalence found in national studies was unsatisfactory, demonstrating that this problem continues to be a major challenge.

Key words:
Hypertension; Medication adherence; Evaluation of research programs and instruments; Prevalence; Meta-analysis

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