{"title":"Validation of the Traditional Chinese Version of the Belief About Medicines Questionnaire-Specific Among Adults with Type 2 Diabetes in Taiwan.","authors":"Yen-Ming Huang, Yu-Meng Yang, Tzu Wang, Yunn-Fang Ho, Hsun-Yu Chan","doi":"10.2147/PPA.S531219","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>Understanding personal beliefs about medications is an effective approach to improving adherence. A validated tool is essential for identifying these beliefs in routine clinical practice.</p><p><strong>Objective: </strong>To validate the factor structure and reliability of the Traditional Chinese version of the Beliefs about Medicines Questionnaire-Specific (BMQ-Specific) among individuals with type 2 diabetes (T2D) in Taiwan.</p><p><strong>Methods: </strong>The original 10-item BMQ-Specific was translated into Traditional Chinese using a forward-backward translation process and reviewed by four experts in pharmacy practice and educational psychology. A cross-sectional study was conducted among adults with T2D who were using diabetes medications. Participants were recruited from five community pharmacies in Taiwan between June 2023 and May 2024. Internal consistency was assessed using McDonald's omega (ω). Construct validity was examined through exploratory factor analysis, and criterion validity was determined by exploring associations between concern beliefs, medication adherence, and glycemic control, as measured by A1C levels.</p><p><strong>Results: </strong>Two hundred and seventy-three patients participated in the study. Exploratory factor analysis confirmed a two-factor structure consistent with the original English version, comprising the Specific-Necessity and Specific-Concerns subscales. All items loaded onto their respective subscales. The internal consistency reliability of the instrument was acceptable, with McDonald's ω values of 0.785 for both the BMQ-Specific Necessity and BMQ-Specific Concerns subscales. These satisfactory properties were further supported by predictive validity data, which demonstrated the impact of treatment beliefs on adherence levels. The BMQ-Specific Concerns subscale showed a positive correlation with higher barriers to medication-taking (r = 0.270, p < 0.001) and poorer glycemic control (r = 0.130, p = 0.032).</p><p><strong>Conclusion: </strong>The Traditional Chinese BMQ-Specific is a reliable and valid tool for assessing medication beliefs among patients with T2D in Taiwan. It can be effectively incorporated into clinical practice to support patient-provider communication and improve medication adherence.</p>","PeriodicalId":19972,"journal":{"name":"Patient preference and adherence","volume":"19 ","pages":"2039-2053"},"PeriodicalIF":2.0000,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12277085/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Patient preference and adherence","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.2147/PPA.S531219","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/1/1 0:00:00","PubModel":"eCollection","JCR":"Q2","JCRName":"MEDICINE, GENERAL & INTERNAL","Score":null,"Total":0}
引用次数: 0
Abstract
Background: Understanding personal beliefs about medications is an effective approach to improving adherence. A validated tool is essential for identifying these beliefs in routine clinical practice.
Objective: To validate the factor structure and reliability of the Traditional Chinese version of the Beliefs about Medicines Questionnaire-Specific (BMQ-Specific) among individuals with type 2 diabetes (T2D) in Taiwan.
Methods: The original 10-item BMQ-Specific was translated into Traditional Chinese using a forward-backward translation process and reviewed by four experts in pharmacy practice and educational psychology. A cross-sectional study was conducted among adults with T2D who were using diabetes medications. Participants were recruited from five community pharmacies in Taiwan between June 2023 and May 2024. Internal consistency was assessed using McDonald's omega (ω). Construct validity was examined through exploratory factor analysis, and criterion validity was determined by exploring associations between concern beliefs, medication adherence, and glycemic control, as measured by A1C levels.
Results: Two hundred and seventy-three patients participated in the study. Exploratory factor analysis confirmed a two-factor structure consistent with the original English version, comprising the Specific-Necessity and Specific-Concerns subscales. All items loaded onto their respective subscales. The internal consistency reliability of the instrument was acceptable, with McDonald's ω values of 0.785 for both the BMQ-Specific Necessity and BMQ-Specific Concerns subscales. These satisfactory properties were further supported by predictive validity data, which demonstrated the impact of treatment beliefs on adherence levels. The BMQ-Specific Concerns subscale showed a positive correlation with higher barriers to medication-taking (r = 0.270, p < 0.001) and poorer glycemic control (r = 0.130, p = 0.032).
Conclusion: The Traditional Chinese BMQ-Specific is a reliable and valid tool for assessing medication beliefs among patients with T2D in Taiwan. It can be effectively incorporated into clinical practice to support patient-provider communication and improve medication adherence.
期刊介绍:
Patient Preference and Adherence is an international, peer reviewed, open access journal that focuses on the growing importance of patient preference and adherence throughout the therapeutic continuum. The journal is characterized by the rapid reporting of reviews, original research, modeling and clinical studies across all therapeutic areas. Patient satisfaction, acceptability, quality of life, compliance, persistence and their role in developing new therapeutic modalities and compounds to optimize clinical outcomes for existing disease states are major areas of interest for the journal.
As of 1st April 2019, Patient Preference and Adherence will no longer consider meta-analyses for publication.