Zulkifli M M, Kadir A A, Elias A, Bea K C, Sadagatullah A N
Department of Family Medicine, Universiti Sains Malaysia, Kubang Kerian, Malaysia.
Klinik Kesihatan Cheneh, Kemaman, Malaysia.
Malays Orthop J. 2017 Jul;11(2):7-14. doi: 10.5704/MOJ.1707.003.
This study aimed to cross-culturally adapt a Malay version of Knee Injury and Osteoarthritis Outcome Score (KOOS) and to evaluate its psychometric properties in patients with knee osteoarthritis (OA). The English version KOOS was translated into a Malay version using forward and backward translation process, followed by face validity and content validity. Two hundred and twenty-six knee OA patients attending the Outpatient and Orthopaedic Clinics, Universiti Sains Malaysia Hospital, completed the Malay version KOOS. Construct validity using confirmatory factor analysis and internal reliability assessment were performed. The results showed that the original five-factor model with 42 items failed to achieve acceptable values of the goodness of fit indices, indicating poor model fit. A new five-factor model of 26 items demonstrated acceptable level of goodness of fit (comparative fit index= 0.929, incremental fit index= 0.930, Tucker Lewis fit index= 0.920, root mean square error of approximation= 0.073 and Chisquared/degree of freedom= 2.183) indices to signify a model fit. The Cronbach's alpha value for the new model ranged from 0.776 to 0.946. The composite reliability values of each construct ranged between 0.819 and 0.921, indicating satisfactory to high level of convergent validity. The five-factor model with 26 items in the Malay version of KOOS questionnaire demonstrated a good degree of goodness of fit and was found to be valid, reliable and simple as an assessment tool for symptoms, pain, activity of daily living, sports and recreational activity and quality of life for Malaysian adults suffering from knee osteoarthritis.
本研究旨在对马来语版的膝关节损伤和骨关节炎疗效评分（KOOS）进行跨文化适应性调整，并评估其在膝关节骨关节炎（OA）患者中的心理测量特性。采用正向和反向翻译程序将英文版KOOS翻译成马来语版，随后进行表面效度和内容效度评估。226名在马来西亚理科大学医院门诊和骨科诊所就诊的膝关节OA患者完成了马来语版KOOS。进行了验证性因子分析的结构效度和内部信度评估。结果表明，最初的包含42个条目的五因素模型未能达到可接受的拟合优度指标值，表明模型拟合不佳。一个包含26个条目的新五因素模型显示出可接受的拟合优度水平（比较拟合指数 = 0.929，增量拟合指数 = 0.930，塔克·刘易斯拟合指数 = 0.920，近似均方根误差 = 0.073，卡方/自由度 = 2.183）指标，表明模型拟合良好。新模型的克朗巴哈α值范围为0.776至0.946。每个结构的组合信度值介于0.819和0.921之间，表明具有令人满意到高水平的收敛效度。马来语版KOOS问卷中包含26个条目的五因素模型显示出良好的拟合优度，并且被发现作为评估马来西亚成年膝关节骨关节炎患者的症状、疼痛、日常生活活动、运动和娱乐活动以及生活质量的工具是有效、可靠且简单的。
