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Cross-cultural adaptation and validation of Sarcopenia and Quality of Life (SarQoL) in Brazil

Authors :
Fabiana de Souza Orlandi
Juliana Duarte Nunes
Diana Gabriela Mendes dos Santos
Aline Cristina Martins Gratão
Marisa Silvana Zazzetta
Source :
São Paulo Medical Journal (2022)
Publication Year :
2022
Publisher :
Associação Paulista de Medicina, 2022.

Abstract

ABSTRACT BACKGROUND: Sarcopenia is defined as a slow, progressive, and apparently inevitable process of involuntary loss of muscle mass, strength, and quality, which occurs with advancing age. It is widely accepted that sarcopenia can directly affect quality of life. OBJECTIVE: Translate, adapt and validate the “Sarcopenia and Quality of Life” instrument (SarQoL) to the Brazilian context. DESIGN AND SETTINGS: Translation, cross-cultural adaptation, and validation study carried out at the Federal University of São Carlos, São Carlos, São Paulo, Brazil. METHODS: The population consisted of 221 older adult participants. The steps recommended by the guidelines from the authors of the original instrument were followed sequentially: initial translation, synthesis of translations, backward translation, evaluation by a panel of judges, pre-test, and analysis of psychometric properties. The translation and adaptation process was conducted as recommended. RESULTS: Two hundred and twenty-one participants took part in the step analysis of the psychometric properties of SarQoL, in which 55 presented sarcopenia. Cronbach's alpha coefficient of the total SarQoL questionnaire was 0.976, indicating excellent internal consistency. Excellent agreements between the test and retest with an Interclass Correlation Coefficient (ICC) of 0.983 (95% confidence interval: 0.901–0.996) were observed in the SarQoL domains. The domains of Short-Form 36 and EuroQoL 5-dimension showed significant correlation, from moderate to strong magnitude, with SarQoL total score, indicating convergent validity. CONCLUSION: The Brazilian version of SarQoL presented evidence of reliability and validity.

Details

Language :
English
ISSN :
18069460 and 15163180
Database :
Directory of Open Access Journals
Journal :
São Paulo Medical Journal
Publication Type :
Academic Journal
Accession number :
edsdoj.f52bbab5c6d4126aa85256522703dcf
Document Type :
article
Full Text :
https://doi.org/10.1590/1516-3180.2021.0968.r1.07042022