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Vietnamese Version of the General Medication Adherence Scale (GMAS): Translation, Adaptation, and Validation

Background: We aimed to translate, cross-culturally adapt, and validate the General Medication Adherence Scale (GMAS) into Vietnamese. Methods: We followed the guidelines of Beaton et al. during the translation and adaptation process. In Stage I, two translators translated the GMAS to Vietnamese. St...

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Autores principales: Nguyen, Thao Huong, Truong, Hoa Van, Vi, Mai Tuyet, Taxis, Katja, Nguyen, Thang, Nguyen, Kien Trung
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8623004/
https://www.ncbi.nlm.nih.gov/pubmed/34828516
http://dx.doi.org/10.3390/healthcare9111471
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author Nguyen, Thao Huong
Truong, Hoa Van
Vi, Mai Tuyet
Taxis, Katja
Nguyen, Thang
Nguyen, Kien Trung
author_facet Nguyen, Thao Huong
Truong, Hoa Van
Vi, Mai Tuyet
Taxis, Katja
Nguyen, Thang
Nguyen, Kien Trung
author_sort Nguyen, Thao Huong
collection PubMed
description Background: We aimed to translate, cross-culturally adapt, and validate the General Medication Adherence Scale (GMAS) into Vietnamese. Methods: We followed the guidelines of Beaton et al. during the translation and adaptation process. In Stage I, two translators translated the GMAS to Vietnamese. Stage II involved synthesizing the two translations. Stage III featured a back translation. Stage IV included an expert committee review and the creation of the pre-final version of the GMAS, and in stage V, pilot testing was conducted on 42 Vietnamese patients with type 2 diabetes. The psychometric validation process evaluated the reliability and validity of the questionnaire. The internal consistency and test–retest reliability were assessed by Cronbach’s alpha and Spearman’s correlation coefficients. The construct validity was determined by an association examination between the levels of adherence and patient characteristics. The content validity was based on the opinion and assessment score by the expert committee. The Vietnamese version of the GMAS was created, including 11 items divided into three domains. There was a good equivalence between the English and the Vietnamese versions of the GMAS in all four criteria. Results: One hundred and seventy-seven patients were participating in the psychometric validation process. Cronbach’s alpha was acceptable for all questionnaire items (0.817). Spearman’s correlation coefficient of the test–retest reliability was acceptable for the GMAS (0.879). There are significant correlations between medication adherence levels and occupation, income, and the Beliefs about Medicines Questionnaire (BMQ) score regarding construct validity. Conclusions: The Vietnamese version of GMAS can be considered a reliable and valid tool for assessing medication adherence in Vietnamese patients.
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spelling pubmed-86230042021-11-27 Vietnamese Version of the General Medication Adherence Scale (GMAS): Translation, Adaptation, and Validation Nguyen, Thao Huong Truong, Hoa Van Vi, Mai Tuyet Taxis, Katja Nguyen, Thang Nguyen, Kien Trung Healthcare (Basel) Article Background: We aimed to translate, cross-culturally adapt, and validate the General Medication Adherence Scale (GMAS) into Vietnamese. Methods: We followed the guidelines of Beaton et al. during the translation and adaptation process. In Stage I, two translators translated the GMAS to Vietnamese. Stage II involved synthesizing the two translations. Stage III featured a back translation. Stage IV included an expert committee review and the creation of the pre-final version of the GMAS, and in stage V, pilot testing was conducted on 42 Vietnamese patients with type 2 diabetes. The psychometric validation process evaluated the reliability and validity of the questionnaire. The internal consistency and test–retest reliability were assessed by Cronbach’s alpha and Spearman’s correlation coefficients. The construct validity was determined by an association examination between the levels of adherence and patient characteristics. The content validity was based on the opinion and assessment score by the expert committee. The Vietnamese version of the GMAS was created, including 11 items divided into three domains. There was a good equivalence between the English and the Vietnamese versions of the GMAS in all four criteria. Results: One hundred and seventy-seven patients were participating in the psychometric validation process. Cronbach’s alpha was acceptable for all questionnaire items (0.817). Spearman’s correlation coefficient of the test–retest reliability was acceptable for the GMAS (0.879). There are significant correlations between medication adherence levels and occupation, income, and the Beliefs about Medicines Questionnaire (BMQ) score regarding construct validity. Conclusions: The Vietnamese version of GMAS can be considered a reliable and valid tool for assessing medication adherence in Vietnamese patients. MDPI 2021-10-29 /pmc/articles/PMC8623004/ /pubmed/34828516 http://dx.doi.org/10.3390/healthcare9111471 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Nguyen, Thao Huong
Truong, Hoa Van
Vi, Mai Tuyet
Taxis, Katja
Nguyen, Thang
Nguyen, Kien Trung
Vietnamese Version of the General Medication Adherence Scale (GMAS): Translation, Adaptation, and Validation
title Vietnamese Version of the General Medication Adherence Scale (GMAS): Translation, Adaptation, and Validation
title_full Vietnamese Version of the General Medication Adherence Scale (GMAS): Translation, Adaptation, and Validation
title_fullStr Vietnamese Version of the General Medication Adherence Scale (GMAS): Translation, Adaptation, and Validation
title_full_unstemmed Vietnamese Version of the General Medication Adherence Scale (GMAS): Translation, Adaptation, and Validation
title_short Vietnamese Version of the General Medication Adherence Scale (GMAS): Translation, Adaptation, and Validation
title_sort vietnamese version of the general medication adherence scale (gmas): translation, adaptation, and validation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8623004/
https://www.ncbi.nlm.nih.gov/pubmed/34828516
http://dx.doi.org/10.3390/healthcare9111471
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