Cultural Adaptation and Linguistic Validation of the Beliefs about Medicines Questionnaire in Malaysia
Background: Low rate of adherence was found strongly associated with patients’ beliefs across the studies about chronic diseases with hypertension. A crucial move is needed to bridge the gap between appropriate assessment tools and local hypertensive patients’ medication adherence. Objective: To pro...
Main Authors: | , , , , |
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Format: | Article |
Language: | English |
Published: |
Elsevier Inc.
2018
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Subjects: | |
Online Access: | View Fulltext in Publisher View in Scopus |
Summary: | Background: Low rate of adherence was found strongly associated with patients’ beliefs across the studies about chronic diseases with hypertension. A crucial move is needed to bridge the gap between appropriate assessment tools and local hypertensive patients’ medication adherence. Objective: To produce a translated version in Malay language of Beliefs about Medicines Questionnaire (BMQ) that was “conceptually equivalent” to the original English version for use in local clinical practice and research. Methods: The forward translation process was conducted by two independent professional translators and back translation was done by two other independent translators. A reliability analysis was conducted on 238 conveniently selected hypertensive patients. Intraclass correlation coefficient (ICC) was used to assess test-retest reliability for the randomly selected 40 patients in a period of 2 weeks. Discriminant validity was tested through Necessity-Concerns differential, BMQ subscales, and other parameters. Results: The overall Cronbach alpha for the internal consistency was good (0.860). The subscales of the BMQ demonstrated adequate internal consistency, with Cronbach alpha value of 0.759 for Specific-Necessity, 0.762 for Specific Concern, 0.624 for General-Overuse, and 0.756 for General-Harm. The ICC was excellent (0.922). Discriminant validity revealed that BMQ Specific-Necessity score was significantly inversely correlated with the systolic blood pressure level. Systolic and diastolic blood pressure levels (P = 0.038; P = 0.05) were reported to be significantly correlated with the Necessity-Concerns differential, with Necessity score equal or exceeding Concerns score. Conclusions: The Malay-translated version of BMQ is a reliable and valid tool to assess patient belief about medication, especially medication adherence among the hypertensive patients in Malaysia. © 2018 |
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ISBN: | 22121099 (ISSN) |
DOI: | 10.1016/j.vhri.2017.12.010 |