Department of Orthopaedic Surgery, Children’s Hospital Boston, Boston, Massachusetts 02115, USA.
Am J Sports Med. 2011 May;39(5):933-9. doi: 10.1177/0363546510383002. Epub 2010 Nov 10.
The International Knee Documentation Committee (IKDC) Subjective Knee Form is a knee-specific measure of symptoms, function, and sports activity. A modified IKDC Subjective Knee Form (pedi-IKDC) has been developed for use in children and adolescents. The purpose of this study was to determine the psychometric characteristics of the pedi-IKDC in children and adolescents with knee disorders.
The pedi-IKDC is a reliable, valid, and responsive patient-administered outcome instrument in the pediatric population with knee disorders.
Cohort study (diagnosis); Level of evidence, 2.
Test-retest reliability, content validity, criterion validity, construct validity, and responsiveness to change were determined for the pedi-IKDC in patients aged 10 to 18 years with a variety of knee disorders. Test-retest reliability was measured in a group of 72 patients with a stable knee disorder. Validity was measured in a group of 589 patients with the Child Health Questionnaire to determine criterion validity. Responsiveness was measured in a group of 98 patients undergoing a variety of knee surgical procedures.
The overall pedi-IKDC had acceptable test-retest reliability (intraclass correlation coefficient, .91) and excellent internal consistency (Cronbach alpha, .91). The form also demonstrated acceptable floor (0%) and ceiling (6%) effects. There was acceptable criterion validity with significant (P < .01) correlation between the overall pedi-IKDC and 9 relevant domains of the Child Health Questionnaire. Construct validity was acceptable, with all 11 hypotheses demonstrating significance (P < .0001). Responsiveness to change was acceptable (effect size, 1.39; standardized response mean, 1.35).
The pedi-IKDC demonstrated overall acceptable psychometric performance for outcome assessment of children and adolescents with various disorders of the knee.
国际膝关节文献委员会（IKDC）主观膝关节评分表是一种专门用于评估膝关节症状、功能和运动活动的膝关节特异性评分表。现已为儿童和青少年开发了改良版 IKDC 主观膝关节评分表（pedi-IKDC）。本研究旨在确定 pedi-IKDC 在患有膝关节疾病的儿童和青少年中的心理测量特性。
pedi-IKDC 是一种可靠、有效且敏感的患者自评膝关节疾病儿童和青少年的结局评估工具。
队列研究（诊断）；证据水平，2 级。
在患有各种膝关节疾病的 10 至 18 岁患者中，对 pedi-IKDC 的重测信度、内容效度、标准效度、结构效度和对变化的反应能力进行了评估。在一组患有稳定膝关节疾病的 72 例患者中进行了重测信度测量。在一组 589 例患有儿童健康问卷的患者中进行了标准效度测量。在接受各种膝关节手术的 98 例患者中进行了反应能力测量。
总体 pedi-IKDC 具有可接受的重测信度（组内相关系数，.91）和极好的内部一致性（Cronbach α，.91）。该表还表现出可接受的下限（0%）和上限（6%）效应。与儿童健康问卷的 9 个相关领域有显著相关性（P <.01），具有可接受的标准效度。结构效度可接受，所有 11 个假设均具有统计学意义（P <.0001）。变化的反应能力可接受（效应量，1.39；标准化反应均值，1.35）。
pedi-IKDC 在评估各种膝关节疾病儿童和青少年的结局方面具有整体可接受的心理计量性能。
