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Primary Non-Adherence to Preventive Drugs and Associations with Beliefs About Medicines in Stroke Survivors

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Background Medication non-adherence is a common problem in clinical practice. Little is known about stroke survivors’ primary non-adherence to preventive drugs, and we hypothesised that their beliefs about medicines are… Click to show full abstract

Background Medication non-adherence is a common problem in clinical practice. Little is known about stroke survivors’ primary non-adherence to preventive drugs, and we hypothesised that their beliefs about medicines are associated with primary non-adherence. The objective was to describe primary non-adherence among stroke survivors and to assess associations between primary non-adherence to preventive drugs and beliefs about medicines. Methods Questionnaires were sent to 797 individuals 3 months after stroke to assess beliefs about medicines through the Beliefs about Medicines Questionnaire (BMQ). All participants were registered in the Swedish Stroke Register (Riksstroke), and prescriptions for new preventive drugs during the hospital stay were identified through data from Riksstroke. Primary non-adherers were those who failed to fill one or more new prescriptions within 1 month of hospital discharge based on data from the Swedish Prescribed Drug Register. Differences between primary non-adherers and adherers were assessed by \documentclass[12pt]{minimal} \usepackage{wasysym} \usepackage[substack]{amsmath} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage[mathscr]{eucal} \usepackage{mathrsfs} \DeclareFontFamily{T1}{linotext}{} \DeclareFontShape{T1}{linotext}{m}{n} {linotext }{} \DeclareSymbolFont{linotext}{T1}{linotext}{m}{n} \DeclareSymbolFontAlphabet{\mathLINOTEXT}{linotext} \begin{document} $${\mathcal X}$$ \end{document}2 tests and associations between the BMQ subscales and primary non-adherence were analysed using independent two-sample t-tests and multivariable logistic regression models. Results A total of 594 individuals responded to the survey, of which 452 received new prescriptions of preventive drugs. Overall, 53 (12%) participants were classified as primary non-adherent. Primary non-adherers were more often dependent on help or support from next of kin (p=0.032) and had difficulties with memory more often (p=0.002) than the primary adherent individuals. No statistically significant differences in BMQ subscale-scores were found between the two groups (p>0.05). Conclusion Primary non-adherence to preventive drugs was low, and no associations were found between primary non-adherence and beliefs about medicines. Associations with cognitive impairments such as difficulties with memory and need for help from next of kin suggest that more effort is needed to help stroke survivors to start important preventive drug treatments after discharge from hospital.

Keywords: primary non; adherence; preventive drugs; beliefs medicines; stroke survivors; non adherence

Journal Title: Patient preference and adherence
Year Published: 2022

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