Xie Feng, Lo Ngai-Nung, Lee Hin-Peng, Cieza Alarcos, Li Shu-Chuen
Department of Clinical Epidemiology and Biostatistics, McMaster University, 25 Main Street West, Hamilton, Ontario, Canada.
J Rheumatol. 2007 Nov;34(11):2301-7. Epub 2007 Oct 15.
To evaluate content validity and construct validity of the International Classification of Functioning, Disability and Health (ICF) Comprehensive Core Set for Osteoarthritis (OA) in Singapore.
Patients with knee OA completed case report forms, which included the SF-36, Self-administered Comorbidity Questionnaire (SCQ), and Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC). Health professionals completed the ICF Comprehensive Core Set for OA. Content validity was evaluated using frequency and percentage of patients with a reported problem for each ICF category, while construct validity was evaluated using Spearman correlation between the ICF categories and SF-36 and the WOMAC.
A consecutive sample of 122 patients completed this study. In body functions, 12 categories were documented as a problem by more than 10% of the patients, of which 7, 12, and 10 categories correlated significantly with the SF-36 Physical Component Summary (PCS), WOMAC pain, and physical function, respectively. Only s750 (Structure of lower extremity) in body structures was reported as a problem and correlated significantly with SF-36 and WOMAC. In activities and participation, 12 categories were reported as a problem by more than 10% of the patients, of which, 11, 11, and 12 correlated significantly with SF-36 PCS, WOMAC pain, and physical function, respectively. In environmental factors, 2 and 14 categories were documented as barrier and facilitator, respectively, by more than 10% of the patients, but none correlated significantly with SF-36 and WOMAC.
The content and construct validity of the Comprehensive Core Set for OA could be supported. Some categories, especially in environmental factors, need to be studied further in different sociocultural contexts.
评估国际功能、残疾和健康分类（ICF）骨关节炎（OA）综合核心集在新加坡的内容效度和结构效度。
膝骨关节炎患者填写病例报告表，其中包括SF-36健康调查简表、自填式共病问卷（SCQ）和西安大略和麦克马斯特大学骨关节炎指数（WOMAC）。卫生专业人员填写骨关节炎ICF综合核心集。使用每个ICF类别的报告问题患者的频率和百分比评估内容效度，而使用ICF类别与SF-36和WOMAC之间的斯皮尔曼相关性评估结构效度。
连续122例患者的样本完成了本研究。在身体功能方面，超过10%的患者记录了12个类别存在问题，其中7个、12个和10个类别分别与SF-36身体成分总结（PCS）、WOMAC疼痛和身体功能显著相关。在身体结构方面，仅下肢结构（s750）被报告存在问题，并与SF-36和WOMAC显著相关。在活动和参与方面，超过10%的患者报告了12个类别存在问题，其中11个、11个和12个类别分别与SF-36 PCS、WOMAC疼痛和身体功能显著相关。在环境因素方面，超过10%的患者分别将2个和14个类别记录为障碍和促进因素，但均与SF-36和WOMAC无显著相关性。
骨关节炎综合核心集的内容效度和结构效度得到支持。某些类别，特别是环境因素类别，需要在不同的社会文化背景下进一步研究。
