1. Validation and psychometric properties of the 8-item Morisky Medication Adherence Scale (MMAS-8) in type 2 diabetes patients in Spain.
- Author
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Martinez-Perez P, Orozco-Beltrán D, Pomares-Gomez F, Hernández-Rizo JL, Borras-Gallen A, Gil-Guillen VF, Quesada JA, Lopez-Pineda A, and Carratala-Munuera C
- Subjects
- Cross-Sectional Studies, Humans, Medication Adherence, Psychometrics, Reproducibility of Results, Spain, Diabetes Mellitus, Type 2 drug therapy
- Abstract
Aims: To validate a translated and culturally adapted version of the Morisky Medication Adherence Scale for use in Spanish population, and to examine the psychometric properties of this scale in patients with type 2 diabetes mellitus in Spain., Design: This cross-sectional study was conducted in a single university hospital in Spain. Patients diagnosed with type 2 diabetes mellitus at least 1 year before inclusion, being treated with anti-diabetic medication were included., Intervention: We used the Spanish version of the scale to measure treatment adherence., Principal Measurements: three level categorical scale is broken down into low adherence (score of <6), medium adherence (score of 6 to <8) and high adherence (score of 8). To validate the questionnaire, we measured internal consistency through Cronbach's α, confirmed construct validity through an exploratory principal component analysis and assessed test-retest reliability., Results: 232 patients met the inclusion criteria. The Cronbach's α coefficient was 0.40 (95% CI 0.28-0.52). The exploratory principal component analysis showed three components. The intraclass correlation coefficient was 0.718 (95% CI 0.564-0.823)., Conclusions: the Spanish version of the Morisky Medication Adherence scale showed low internal consistency, the exploratory factor analysis identified three dimensions, and the test-retest reliability was acceptable, therefore, psychometric properties of MMAS-8 are not suitable for measuring medication adherence in type 2 diabetes mellitus patients from Spain., (Copyright © 2020 The Author(s). Publicado por Elsevier España, S.L.U. All rights reserved.)
- Published
- 2021
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