Irrgang James J, Anderson Allen F, Boland Arthur L, Harner Christopher D, Neyret Philippe, Richmond John C, Shelbourne K Donald
Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA 15213, USA.
Am J Sports Med. 2006 Oct;34(10):1567-73. doi: 10.1177/0363546506288855. Epub 2006 Jul 26.
The International Knee Documentation Committee Subjective Knee Form was developed to measure change in symptoms, function, and sports activity in patients treated for a variety of knee conditions. Although previous research has demonstrated reliability and validity of the form, its responsiveness has not been evaluated. The purpose of this study was to determine responsiveness of the International Knee Documentation Committee Subjective Knee Form.
Cohort study (diagnosis); Level of evidence, 1.
Patients who participated in the original validation study for the International Knee Documentation Committee Subjective Knee Form completed the form and a 7-level global rating of change scale that ranged from greatly worse to greatly better after a mean of 1.6 years (range, 0.5-2.3 years). Analyses included calculation of the standardized response mean and mean change in International Knee Documentation Committee Subjective Knee Form score compared to the patient's perception of change on the global rating of change scale. In addition, a receiver operating characteristic curve was plotted to determine the change in score that best distinguished patients who improved from those who did not.
The overall standardized response mean was 0.94, which is considered large. With the exception of those who were slightly worse or unchanged, the mean change in the International Knee Documentation Committee Subjective Knee Form score compared to the patients' perceived global ratings of change was as expected (greatly worse, -15.1; somewhat worse, -8.4; slightly worse, 20.6; no change, 10.7; slightly better, 5.9; somewhat better, 18.1; greatly better, 38.7). The receiver operating characteristic curve analysis revealed that a change score of 11.5 points had the highest sensitivity, and a change score of 20.5 points had the highest specificity to distinguish between those who were or were not improved.
The International Knee Documentation Committee Subjective Knee Form is a responsive measure of symptoms, function, and sports activity for patients with a variety of knee conditions.
国际膝关节文献委员会主观膝关节量表旨在测量接受多种膝关节疾病治疗的患者在症状、功能及体育活动方面的变化。尽管先前的研究已证实该量表的可靠性和有效性，但其反应度尚未得到评估。本研究的目的是确定国际膝关节文献委员会主观膝关节量表的反应度。
队列研究（诊断）；证据等级，1级。
参与国际膝关节文献委员会主观膝关节量表原始效度研究的患者在平均1.6年（范围0.5 - 2.3年）后完成该量表以及一个7级整体变化评定量表，该量表范围从“明显变差”到“明显变好”。分析内容包括计算标准化反应均值以及将国际膝关节文献委员会主观膝关节量表得分的平均变化与患者在整体变化评定量表上对变化的感知进行比较。此外，绘制受试者工作特征曲线以确定最能区分改善患者与未改善患者的得分变化。
总体标准化反应均值为0.94，被认为较大。与患者感知的整体变化评定相比，国际膝关节文献委员会主观膝关节量表得分的平均变化除了那些稍有变差或无变化的情况外均符合预期（明显变差，-15.1；稍差，-8.4；稍有变差，20.6；无变化，10.7；稍有改善，5.9；稍好，18.1；明显改善，38.7）。受试者工作特征曲线分析显示，变化得分11.5分具有最高敏感性，变化得分20.5分具有最高特异性以区分改善与否。
国际膝关节文献委员会主观膝关节量表是测量多种膝关节疾病患者症状、功能及体育活动的一种具有反应度的指标。
