Validation of the Western Ontario and McMaster Universities Arthritis Index Short Form (WOMAC-SF) and Its Relevance to Disability and Frailty
10.3349/ymj.2020.61.3.251
- Author:
Soo Hyun PARK
1
;
Byeong Hun KANG
;
Mi Ji KIM
;
Bokyoung KIM
;
Gyeong Ye LEE
;
Young Mi SEO
;
Jun Il YOO
;
Ki Soo PARK
Author Information
1. Department of Preventive Medicine, College of Medicine and Institute of Health Science, Gyeongsang National University, Jinju, Korea. parkks@gnu.ac.kr
- Publication Type:Original Article
- Keywords:
WOMAC;
musculoskeletal disorders;
disability;
frailty
- MeSH:
Appointments and Schedules;
Arthritis;
Cohort Studies;
Cross-Sectional Studies;
Extremities;
Humans;
Korea;
Ontario;
Osteoarthritis, Knee;
Osteoporosis;
Quality of Life;
Sarcopenia;
World Health Organization
- From:Yonsei Medical Journal
2020;61(3):251-256
- CountryRepublic of Korea
- Language:English
-
Abstract:
PURPOSE: This study aimed to evaluate the validity of the Western Ontario and McMaster Universities Arthritis Index Short Form (WOMAC-SF) for the assessment of musculoskeletal disorders. We evaluated whether WOMAC-SF correlated with the World Health Organization Disability Assessment Schedule 12 (WHODAS-12) and Kaigo-Yobo questionnaires for assessing health-outcomes in Korea.MATERIALS AND METHODS: This cross-sectional study used data from the Namgaram-2 cohort. WOMAC, WOMAC-SF, WHODAS-12, and Kaigo-Yobo questionnaires were administered to patients with musculoskeletal disorders, including radiology-confirmed knee osteoarthritis (RKOA), sarcopenia, and osteoporosis. The relationships among WOMAC-SF, WHODAS-12, and Kaigo-Yobo scores were analyzed by stepwise multiple regression analysis.RESULTS: WOMAC-SF was associated with the WOMAC questionnaire. The results of confirmatory factor analysis for the hypothesized model with two latent factors, pain and function, provided satisfactory fit indices. WOMAC-SF pain and function were associated with RKOA. Kaigo-Yobo was associated with WOMAC-SF pain (B=0.140, p=0.001) and WOMAC-SF function (B=0.042, p=0.004). WHODAS-12 was associated with WOMAC-SF pain (B=0.679, p=0.003) and WOMAC-SF function (B=0.804, p<0.001).CONCLUSION: WOMAC-SF was validated for the evaluation of low extremity musculoskeletal disorders and health-related quality of life in a community-based population. Furthermore, we confirmed that WOMAC-SF were reflective of disability and frailty, which affect health outcomes.
