Department of Policy Analysis and Public Management, Bocconi University, Milan, Italy.
Mod Rheumatol. 2012 Sep;22(5):758-65. doi: 10.1007/s10165-011-0579-4. Epub 2012 Jan 15.
To translate the functional index for hand osteoarthritis (FIHOA) into Italian and to evaluate its reliability and validity in Italian patients with hand osteoarthritis (HOA).
The original French FIHOA was translated into Italian according to the guidelines for cross-cultural adaptation and then administered to 72 outpatients with HOA, together with the visual analogue scale of pain (VAS), the Health Assessment Questionnaire (HAQ) and the Short Form Health Survey (SF-36). Test-retest reliability was verified by having all patients fill out the Italian version of FIHOA again 1 week later. Item-item analysis was performed. The Wilcoxon signed-rank test and Spearman's rank correlation coefficient were calculated to compare test and retest responses and to evaluate the degree of correlation. Internal consistency reliability was evaluated by Cronbach's alpha coefficient, and internal structure validity was appraised through factor analysis, also taking a varimax rotation into consideration. Construct validity was assessed by correlating FIHOA with other measures of functional impairment and pain using Spearman's rank correlation coefficient.
Internal consistency was high (Cronbach's α = 0.87). Test-retest reliability showed a Spearman's rho of 0.942 (p < 0.001). A significant correlation (p < 0.001) between FIHOA, VAS and HAQ and a significant negative correlation between FIHOA and SF-36 subscales were observed. FIHOA was confirmed to be a non-unidimensional scale, but in addition to the total score of the index, three subtotals of item scores were considered to provide better evaluations of finger functionality (items 3, 6, 8 and 10), wrist functionality (items 2 and 7) and hand strength (items 4 and 5) in single individuals.
The Italian version of FIHOA is a reliable and valid instrument for evaluating functional disability in Italian-speaking HOA patients.
将手部骨关节炎功能指数（FIHOA）翻译成意大利语，并评估其在意大利手部骨关节炎（HOA）患者中的信度和效度。
根据跨文化适应指南将原始法语 FIHOA 翻译成意大利语，然后对 72 名手部骨关节炎门诊患者进行 FIHOA 问卷调查，同时使用视觉模拟评分（VAS）、健康评估问卷（HAQ）和简明健康调查问卷（SF-36）。通过让所有患者在 1 周后再次填写意大利语 FIHOA 来验证测试-重测信度。进行项目间分析。使用 Wilcoxon 符号秩检验和 Spearman 秩相关系数来比较测试和重测的反应，并评估相关性的程度。使用 Cronbach 的 alpha 系数评估内部一致性信度，通过因子分析评估内部结构效度，同时考虑使用方差极大旋转。通过 Spearman 秩相关系数评估 FIHOA 与其他功能障碍和疼痛测量指标之间的构念效度。
内部一致性高（Cronbach's α = 0.87）。测试-重测信度显示 Spearman's rho 为 0.942（p < 0.001）。FIHOA 与 VAS 和 HAQ 之间存在显著相关性（p < 0.001），FIHOA 与 SF-36 各分量之间存在显著负相关。FIHOA 被证实为非单维量表，但除了指数总分外，还考虑了三个项目分数的小计，以便更好地评估单个患者手指功能（项目 3、6、8 和 10）、腕部功能（项目 2 和 7）和手部力量（项目 4 和 5）。
意大利语版 FIHOA 是一种可靠且有效的工具，可用于评估意大利语手部骨关节炎患者的功能障碍。
