Validation of the Persian version of the sarcopenia-specific quality of life questionnaire (SarQoL®-IR)

Marzieh Mahmoodi; Najmeh Hejazi; Zahra Bagheri; Nasrin Nasimi; Cain C T Clark; Mahsa Moosavi; Mohammad Hossein Dabbaghmanesh; Zohreh Mazloom

doi:10.1007/s40520-022-02255-0

Validation of the Persian version of the sarcopenia-specific quality of life questionnaire (SarQoL^®-IR)

Aging Clin Exp Res. 2023 Jan;35(1):137-145. doi: 10.1007/s40520-022-02255-0. Epub 2022 Oct 26.

Authors

Marzieh Mahmoodi¹, Najmeh Hejazi², Zahra Bagheri³, Nasrin Nasimi⁴, Cain C T Clark⁵, Mahsa Moosavi⁶, Mohammad Hossein Dabbaghmanesh^{7

8}, Zohreh Mazloom⁹

Affiliations

¹ Department of Clinical Nutrition, School of Nutrition and Food Science, Shiraz University of Medical Science, Shiraz, Iran.
² Department of Clinical Nutrition, School of Nutrition and Food Science, Shiraz University of Medical Science, Shiraz, Iran. najmehhejazi@gmail.com.
³ Department of Biostatistics, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
⁴ Department of Community Nutrition, School of Nutrition and Food Science, Shiraz University of Medical Science, Shiraz, Iran.
⁵ Centre for Intelligent Healthcare, Coventry University, Coventry, CV1 5FB, UK.
⁶ Clinical Education Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
⁷ Endocrinology and Metabolism Research Center, Shiraz University of Medical Sciences, Shiraz, Iran. dabbaghm@sums.ac.ir.
⁸ Shiraz Endocrinology and Metabolism Research Center, Nemazee Hospital, Shiraz University of Medical Sciences, Shiraz, Iran. dabbaghm@sums.ac.ir.
⁹ Department of Clinical Nutrition, School of Nutrition and Food Science, Shiraz University of Medical Science, Shiraz, Iran. zohreh.mazloom@gmail.com.

PMID: 36289155
DOI: 10.1007/s40520-022-02255-0

Abstract

Background: The sarcopenia quality of life (SarQoL)^® questionnaire is a specific tool to measure QoL in sarcopenia. The aim of this study was to validate the SarQoL^® questionnaire for evaluation of sarcopenia-related quality of life in Iranian community-dwelling older adults.

Methods: Validity (discriminative power, construct validity), reliability (internal consistency, test-retest reliability), and floor/ceiling effects of SarQoL^® questionnaire were evaluated in the current study. Moreover, the SarQoL^® questionnaire was compared with the Short-Form 36-item (SF-36) and the EuroQoL 5-Dimensions (EQ-5D) questionnaires.

Results: Among 501 community-dwelling older adults, 128 elderly participants (including 88 sarcopenic individuals) were recruited for validation. Participants with sarcopenia had lower quality of life than non-sarcopenic individuals (Total Score: 39.37 ± 7.45 vs. 65.09 ± 7.85, p < 0.001). Also, the findings demonstrated a high internal consistency (Cronbach's alpha of 0.881), excellent test-retest reliability (ICC = 0.995, 95% CI 0.990-0.998), and no floor/ceiling effect of SarQoL^® questionnaire.

Conclusion: This is the first study to confirm the reliability and validity of the Persian version of the SarQoL^® for the measurement of quality of life among Iranian sarcopenic older adults.

Keywords: Persian; Quality of life; SarQoL; Sarcopenia; Validation.

MeSH terms

Aged
Humans
Iran
Psychometrics
Quality of Life*
Reproducibility of Results
Sarcopenia* / diagnosis
Surveys and Questionnaires

Grants and funding

21056/Shiraz University of Medical Sciences