• J Formos Med Assoc · Mar 2023

    Translation and validation of the Taiwanese SarQoL, a quality of life questionnaire specific to sarcopenia.

    • Shu-Chun Lee, Cheng-Fen Chang, Jiun-Yi Wang, and Pei-Jung Liang.
    • School of Gerontology and Long-Term Care, College of Nursing, Taipei Medical University, Taipei, Taiwan.
    • J Formos Med Assoc. 2023 Mar 1; 122 (3): 249257249-257.

    BackgroundThe Sarcopenia Quality of Life (SarQoL) questionnaire has been translated into various languages. This study validated the Taiwanese version of the SarQoL (SarQoL-TW) questionnaire.MethodsForward-backward translation was conducted, along with a test of the prefinal version of the translated questionnaire. To validate the psychometric properties of the questionnaire, 50 older adults with sarcopenia and 50 older adults without sarcopenia completed the SarQoL-TW, the Short Form12 Health Survey (SF-12), and the EQ-5D-3L questionnaire. Participants with sarcopenia were asked to complete the SarQoL-TW questionnaire once more after 2 weeks. Validating the psychometric properties of the SarQoL-TW questionnaire involved assessing its discriminative power, internal consistency, construct validity, test-retest reliability, and potential floor and ceiling effects.ResultsThe SarQoL-TW questionnaire was translated without major difficulties. The psychometric analysis revealed that older adults with sarcopenia scored significantly lower on the SarQoL-TW, both overall and in some of the domains. The Cronbach's alpha of 0.846 indicated high internal consistency. The SarQoL-TW questionnaire correlated well with similar constructs on the SF-12 and EQ-5D-3L for convergent validity and correlated weakly with distinct domains for divergent validity, confirming its favorable construct validity. The test-retest reliability was excellent (intraclass correlation coefficient: 0.970). Neither floor nor ceiling effects were observed.ConclusionThe SarQoL-TW questionnaire is a reliable and valid questionnaire, useful for assessing quality of life in older adults with sarcopenia in clinical practice and research.Copyright © 2022 Formosan Medical Association. Published by Elsevier B.V. All rights reserved.

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