Soininen J V, Paavolainen P O, Gronblad M A, Kaapa E H
Rehabilitation Centre, Orton Orthopaedic Hospital, Helsinki, Finland.
Hip Int. 2008 Apr-Jun;18(2):108-11. doi: 10.1177/112070000801800207.
The aim of the study was to validate a Finnish version of the internationally used Western Ontario and McMasters University osteoarthritis index (WOMAC) questionnaire, by testing its reliability, validity and responsiveness. The subjects of the study were patients scheduled for elective total knee arthroplasty (TKA) or total hip arthroplasty (THA). The patients completed the WOMAC questionnaire twice prior to surgery and once postoperatively to enable reliability, construct validity and responsiveness analysis. Test-retest reliability could be calculated for 67 patients (37 TKA and 30 THA). The intraclass correlation coefficients (ICC a) exceeded 0.9 with the exception of the stiffness subscale which averaged 0.8. Correlation of the preoperative WOMAC total score with the Harris Hip Score (HHS) in 30 patients and American Knee Society Score (AKSS) in 37 patients were mediocre ranging from 0.48 to 0.53. To test responsiveness, the first preoperative and the postoperative WOMAC scores of 74 subjects were compared (41 TKA and 33 THA). Standard response means (SRM) and effect sizes (ES) exceeded the recommended score of 0.8, ranging from 1.15 to 2.35. In conclusion the Finnish translation of the WOMAC questionnaire performs as the original, is valid and can be used in future studies of osteoarthritis.
本研究的目的是通过测试其信度、效度和反应度，来验证国际上通用的西安大略和麦克马斯特大学骨关节炎指数（WOMAC）问卷的芬兰语版本。研究对象为计划接受择期全膝关节置换术（TKA）或全髋关节置换术（THA）的患者。患者在手术前完成两次WOMAC问卷，术后完成一次，以进行信度、结构效度和反应度分析。可以计算67例患者（37例TKA和30例THA）的重测信度。除僵硬子量表平均为0.8外，组内相关系数（ICC a）超过0.9。30例患者术前WOMAC总分与Harris髋关节评分（HHS）以及37例患者术前WOMAC总分与美国膝关节协会评分（AKSS）的相关性一般，范围在0.48至0.53之间。为测试反应度，比较了74例受试者（41例TKA和33例THA）术前首次和术后的WOMAC评分。标准反应均值（SRM）和效应大小（ES）超过了推荐的0.8分，范围在1.15至2.35之间。总之，WOMAC问卷的芬兰语翻译版本表现与原版本相同，具有效度，可用于未来的骨关节炎研究。
