Background

Purpose of this study was an external evaluation of the recently developed European Foot and Ankle Society (EFAS) Score.

Methods

From July 2021 to January 2022, all consecutive patients with foot and ankle disorders were asked to complete three validated questionnaires prior to the medical examination. Validity was evaluated with correlations between the EFAS Score, Manchester-Oxford Foot Questionnaire (MOxFQ) and Foot and Ankle Outcome Score (FAOS). Cronbach’s alpha, floor and ceiling effects and the minimal important difference (MID) were determined.

Results

In a total of 161 included patients, the EFAS Score demonstrated a very good correlation with the MOxFQ index score (r = 0.76, p < 0.001). There were no floor or ceiling effects. Cronbach’s alpha was 0.863, and the MID amounts 3 points and 7 points for significant changes respectively.

Conclusion

In terms of reliability and validity, the EFAS Score demonstrated good to excellent psychometric values.

A change of 7 points or more in the EFAS Score in longitudinal examinations is clinically highly relevant.

中文翻译：

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德文版欧洲足踝协会评分的信度、效度和临床适用性

背景

本研究的目的是对最近开发的欧洲足踝协会 (EFAS) 评分进行外部评估。

方法

从 2021 年 7 月到 2022 年 1 月，所有连续的足踝疾病患者都被要求在体检前完成三份经过验证的问卷。有效性通过 EFAS 评分、曼彻斯特-牛津足部问卷 (MOxFQ) 以及足部和踝关节结果评分 (FAOS) 之间的相关性进行评估。确定了 Cronbach 的 alpha、地板和天花板效应以及最小重要差异 (MID)。

结果

在总共 161 名纳入的患者中，EFAS 评分与 MOxFQ 指数评分显示出非常好的相关性（r = 0.76，p < 0.001）。没有地板或天花板效应。Cronbach's alpha 为 0.863，MID 显着变化分别为 3 分和 7 分。

结论

在信度和效度方面，EFAS 分数表现出良好到极好的心理测量值。

纵向检查中 EFAS 评分变化 7 分或更多与临床高度相关。