Naal Florian D, Impellizzeri Franco M, Huber Martin, Rippstein Pascal F
Department of Orthopaedic Surgery, Foot and Ankle Center, Schulthess Clinic, Lengghalde 2, 8008 Zurich, Switzerland.
Foot Ankle Int. 2008 Dec;29(12):1222-8. doi: 10.3113/FAI.2008.1222.
The purpose of this study was to cross-culturally adapt the Foot Function Index (FFI) for use in German-speaking patients with foot complaints.
The FFI was adapted for the German language according to the recommended forward/backward translation protocol. The following metric properties were assessed in 53 consecutive patients (mean age, 57.2 years; 39 women) undergoing foot surgery at our department: feasibility, reliability (intraclass correlation coefficient ICC), internal consistency (Cronbach's alpha, CA), and construct validity (correlation with the Short Form (SF-36), a VAS assessing pain, a VAS assessing function, and the University of California at Los Angeles (UCLA) activity scale.
The German FFI (FFI-D) comprised 18 items separated into a pain and a disability subscale. Completion of the FFI-D was feasible. The reliability and the internal consistency were both excellent with an ICC of 0.98 and a CA of 0.97 for the total score. We found moderate to high correlations between the FFI-D and the physical related SF-36 domains (r = -0.43 to -0.80), the VAS pain (r = 0.81), the VAS function (r = 0.77), and the UCLA (r = -0.52). Correlation coefficients between the FFI-D and the mental health related SF-36 domains were significantly lower (r = -0.08 to -0.32; p < 0.01), indicating divergent validity.
The German version of the FFI is a reliable and valid questionnaire for the self-assessment of pain and disability in German-speaking patients with foot complaints.
本研究的目的是对足功能指数（FFI）进行跨文化改编，以用于有足部问题的德语患者。
根据推荐的正向/反向翻译方案，将FFI改编为德语版本。对在我科接受足部手术的53例连续患者（平均年龄57.2岁；39名女性）评估了以下度量特性：可行性、可靠性（组内相关系数ICC）、内部一致性（克朗巴哈系数α，CA）和结构效度（与简短健康调查问卷（SF - 36）、评估疼痛的视觉模拟量表（VAS）、评估功能的VAS以及加利福尼亚大学洛杉矶分校（UCLA）活动量表的相关性）。
德语版FFI（FFI - D）包含18个项目，分为疼痛和残疾两个子量表。完成FFI - D是可行的。总分的可靠性和内部一致性都非常好，ICC为0.98，CA为0.97。我们发现FFI - D与SF - 36身体相关领域（r = -0.43至 -0.80）、VAS疼痛（r = 0.81）、VAS功能（r = 0.77）以及UCLA（r = -0.52）之间存在中度到高度的相关性。FFI - D与SF - 36心理健康相关领域之间的相关系数显著较低（r = -0.08至 -0.32；p < 0.01），表明区分效度。
德语版FFI是用于有足部问题的德语患者自我评估疼痛和残疾的可靠且有效的问卷。
