Translation and Validation of the Medication Understanding and Use Self-Efficacy Scale Among Patients With Type 2 Diabetes in Taiwan

IF 3 3区医学 Q2 HEALTH CARE SCIENCES & SERVICES Health Expectations Pub Date : 2025-03-15 DOI:10.1111/hex.70222

Yen-Ming Huang, Yu-Meng Yang, Tzu Wang, Yunn-Fang Ho, Hsun-Yu Chan

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Abstract

Objective

The study aimed to translate and assess the validity and reliability of the Traditional Chinese version of the Medication Understanding and Use Self-Efficacy Scale (MUSE-TC) among patients with type 2 diabetes (T2D) in Taiwan.

Methods

The original 8-item MUSE was translated into Traditional Chinese using a forward and backward translation method. The translations were reviewed by four experts in pharmacy practice and educational psychology. The validity and reliability of the MUSE-TC were assessed in a cross-sectional study among adults with T2D who were taking diabetes medications. Participants were recruited from five community pharmacies in Taiwan between June 2023 and May 2024. Internal consistency of the MUSE-TC was measured using McDonald's omega (ω), while construct validity was evaluated through confirmatory factor analysis. Criterion validity was established by examining the relationship between self-efficacy and medication adherence.

Results

A total of 274 patients participated in the study. Confirmatory factor analysis identified a two-factor structure for the 8-item MUSE-TC, consisting of the “taking medication” and “learning about medication” domains. All items loaded onto their intended factors, with factor loadings ranging from 0.433 to 0.511. The scale demonstrated excellent internal consistency, with McDonald's ω values of 0.914 for the “taking medication” domain and 0.906 for the “learning about medication” domain. These robust psychometric properties were further supported by criterion validity, as self-efficacy was shown to be associated with medication adherence. Specifically, the “taking medication” domain was positively correlated with fewer barriers to medication-taking (r = 0.382, p < 0.001), suggesting that individuals with higher self-efficacy tend to adhere to their prescribed medication regimen.

Conclusions

This study presents the MUSE-TC with psychometrically sound properties that will enable healthcare professionals to prospectively assess self-efficacy in medication use and evaluate the impact of self-efficacy on a variety of health outcomes across patients with different chronic diseases.

Patient or Public Contribution

Patients, pharmacists, pharmacy staff, and academic experts worked together on the translation and validation of this self-efficacy scale for medication adherence among individuals with chronic illnesses. Community engagement played a key role in translating the scale, recruiting participants, collecting data, conducting analysis, and interpreting the findings. These collaborative efforts ensure the study relevance and applicability to patient care in routine healthcare settings.

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来源期刊

Health Expectations 医学-公共卫生、环境卫生与职业卫生

CiteScore

5.20

自引率

9.40%

发文量

251

审稿时长

>12 weeks

期刊介绍： Health Expectations promotes critical thinking and informed debate about all aspects of patient and public involvement and engagement (PPIE) in health and social care, health policy and health services research including: • Person-centred care and quality improvement • Patients'' participation in decisions about disease prevention and management • Public perceptions of health services • Citizen involvement in health care policy making and priority-setting • Methods for monitoring and evaluating participation • Empowerment and consumerism • Patients'' role in safety and quality • Patient and public role in health services research • Co-production (researchers working with patients and the public) of research, health care and policy Health Expectations is a quarterly, peer-reviewed journal publishing original research, review articles and critical commentaries. It includes papers which clarify concepts, develop theories, and critically analyse and evaluate specific policies and practices. The Journal provides an inter-disciplinary and international forum in which researchers (including PPIE researchers) from a range of backgrounds and expertise can present their work to other researchers, policy-makers, health care professionals, managers, patients and consumer advocates.