Sayyed-Hosseinian Sayyed-Hadi, Hassankhani Golnaz Ghayyem, Bagheri Farshid, Alavi Niloufar, Shojaie Babak, Mousavian Alireza
Orthopedic Research Center, Shahid Kamyab Hospital, Mashhad University of Medical Sciences, Mashhad, Iran.
Traumatology, Hand and Orthopedic Surgery Department, st. Marien Medical Campus, Friesoythe, Germany.
Arch Bone Jt Surg. 2018 May;6(3):233-239.
American Orthopedic Foot and Ankle Society Score (AOFAS) is a reliable and reproducible measurement tool which is commonly used for the assessment of foot and ankle conditions. In this study we aimed to translate and assess the psychometric properties of the Persian version of AOFAS questionnaire.
In this study, we enrolled 53 patients with ankle and hindfoot conditions. Our study was conducted according to five staged cross-cultural adaption steps including translation, synthesis, back translation, expert committee review, and pretesting. After that reliability of the subjective parts calculated by Cronbach's alpha and the intraclass correlation coefficient (ICC) and the reliability of the objective items estimated using Cohen's kappa test. Also, construct validity was assessed by testing the Persian AOFAS against the SF-36 questionnaire.
Chronbach's alpha coefficient was 0.696, which was considered acceptable. Furthermore, the test-retest reliability measured by using the ICC for the subjective subscales was 0.853 (). The reliability of testing the objective subscales was calculated by using Kappa, which indicated acceptable values. Pearson correlation coefficient between AOFAS and SF-36 was 0.415 (). In addition, floor and ceiling effects were calculated 1.9% and 7.5% respectively.
In our study, Persian translation of AOFAS demonstrated acceptable validity and reliability with no need to be culturally adapted.
美国足踝外科协会评分（AOFAS）是一种可靠且可重复的测量工具，常用于评估足踝疾病。在本研究中，我们旨在翻译并评估AOFAS问卷波斯语版本的心理测量特性。
在本研究中，我们纳入了53例患有踝部和后足疾病的患者。我们的研究按照五个阶段的跨文化适应步骤进行，包括翻译、综合、回译、专家委员会审查和预测试。之后，通过Cronbach's α和组内相关系数（ICC）计算主观部分的信度，使用Cohen's kappa检验估计客观项目的信度。此外，通过将波斯语AOFAS与SF - 36问卷进行测试来评估结构效度。
Cronbach's α系数为0.696，被认为是可接受的。此外，使用ICC测量的主观子量表的重测信度为0.853（）。使用Kappa计算客观子量表测试的信度，结果显示值可接受。AOFAS与SF - 36之间的Pearson相关系数为0.415（）。此外，地板效应和天花板效应分别计算为1.9%和7.5%。
在我们的研究中，AOFAS的波斯语翻译显示出可接受的效度和信度，无需进行文化调整。
