Ga Young Ahn1, Soo-Kyung Cho1,2, Sung Joo Cha2, Eunwoo Nam3, Jung-Eun Lee3, Renée Liliane Dreiser4, Emmanuel Maheu5, Yoon-Kyoung Sung1,2. 1. Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Republic of Korea. 2. Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Republic of Korea. 3. Biostatistical Consulting and Research Lab, Medical Research Collaborating Center, Hanyang University, Seoul, Republic of Korea. 4. Department of Rheumatology, Bichat Hospital, Paris, France. 5. Department of Rheumatology, Saint-Antoine Hospital, Paris, France.
Abstract
AIM: This study aimed to translate the Functional Index for Hand Osteoarthritis (FIHOA) into Korean, and establish its reliability and validity in Korean patients with hand osteoarthritis (OA). METHOD: The FIHOA was translated into Korean (K-FIHOA) following cross-cultural adaptation guidelines. The K-FIHOA was pretested on 40 patients with hand OA. The adapted K-FIHOA was then administered to 100 consecutive hand OA patients together with the modified Health Assessment Questionnaire (mHAQ) and visual analog scale (VAS) for hand pain. The test-retest reliability of each item and total scores were assessed using Spearman's correlation coefficient and intraclass correlation coefficient (ICC). The internal consistency reliability was evaluated as Cronbach's alpha. The external construct validity was assessed using the correlation between K-FIHOA, mHAQ and hand pain VAS. RESULTS: The test-retest reliability for the total score was strong (r = 0.87 and ICC = 0.83). Cronbach's alpha was also high (0.88), which suggests that there is strong internal coherence in the test items. We identified significant correlations between K-FIHOA and mHAQ (r = 0.52, P < 0.01), mHAQ hand function score, (r = 0.57, P < 0.01) and hand pain VAS (r = 0.53, P < 0.01). CONCLUSION: The K-FIHOA is a reliable and valid instrument for evaluating functional disability in Korean hand OA patients.
AIM: This study aimed to translate the Functional Index for Hand Osteoarthritis (FIHOA) into Korean, and establish its reliability and validity in Korean patients with hand osteoarthritis (OA). METHOD: The FIHOA was translated into Korean (K-FIHOA) following cross-cultural adaptation guidelines. The K-FIHOA was pretested on 40 patients with hand OA. The adapted K-FIHOA was then administered to 100 consecutive hand OA patients together with the modified Health Assessment Questionnaire (mHAQ) and visual analog scale (VAS) for hand pain. The test-retest reliability of each item and total scores were assessed using Spearman's correlation coefficient and intraclass correlation coefficient (ICC). The internal consistency reliability was evaluated as Cronbach's alpha. The external construct validity was assessed using the correlation between K-FIHOA, mHAQ and hand pain VAS. RESULTS: The test-retest reliability for the total score was strong (r = 0.87 and ICC = 0.83). Cronbach's alpha was also high (0.88), which suggests that there is strong internal coherence in the test items. We identified significant correlations between K-FIHOA and mHAQ (r = 0.52, P < 0.01), mHAQ hand function score, (r = 0.57, P < 0.01) and hand pain VAS (r = 0.53, P < 0.01). CONCLUSION: The K-FIHOA is a reliable and valid instrument for evaluating functional disability in Korean hand OA patients.
Authors: Luca Barni; María Ruiz-Muñoz; Manuel Gonzalez-Sanchez; Antonio I Cuesta-Vargas; Jose Merchan-Baeza; Marco Freddolini Journal: Health Qual Life Outcomes Date: 2021-11-22 Impact factor: 3.186