Las Hayas Carlota, Quintana Jose M, Padierna Jesus A, Bilbao Amaia, Muñoz Pedro, Francis Cook E
Research Unit, Galdakao Hospital, Galdakao, Bizkaia, Spain.
J Clin Epidemiol. 2007 Aug;60(8):825-33. doi: 10.1016/j.jclinepi.2006.10.004. Epub 2007 Jan 22.
To assess the responsiveness of the Health-Related Quality of Life for Eating Disorders questionnaire version-2 (HeRQoLEDv2) and present the psychometric characteristics of a new binge domain.
Patients with an eating disorder completed the HeRQoLEDv2, the Eating Attitudes Test-26, Short Form Health Survey-12, and two items from the Eating Disorder Inventory-2, at baseline and after 1 year. At the second assessment, patients completed the HeRQoLEDv2, as part of the battery of tests, along with health transitional questions. Validity and reliability analyses of the new binge domain were performed. Responsiveness was evaluated using distributional and anchor-based approaches, comparison of mean changes, mean change correlations, the minimal detectable change (MDC) at the individual and group level, and the minimal important difference (MID).
Items in the binge domain loaded above 0.40. Cronbach alpha was 0.82. Regarding responsiveness, the mean changes detected by the HeRQoLEDv2 correlated above 0.30 with the criterion measures. Patients who reported improvement showed significant changes, and effect sizes above 0.30. The MDC(90%ind) was larger than the MID.
The HeRQoLEDv2 includes the new binge domain. It responded to change at the group level. Further research regarding the MID is needed.
评估饮食失调相关生活质量问卷第2版（HeRQoLEDv2）的反应度，并呈现一个新的暴饮暴食领域的心理测量特征。
饮食失调患者在基线时和1年后完成了HeRQoLEDv2、饮食态度测试-26、简短健康调查-12以及饮食失调问卷-2中的两个项目。在第二次评估时，患者完成了HeRQoLEDv2，作为一系列测试的一部分，同时还回答了健康过渡问题。对新的暴饮暴食领域进行了效度和信度分析。使用分布法和基于锚定法、平均变化比较、平均变化相关性、个体和群体水平的最小可检测变化（MDC）以及最小重要差异（MID）来评估反应度。
暴饮暴食领域的项目负荷高于0.40。克朗巴哈系数为0.82。关于反应度，HeRQoLEDv2检测到的平均变化与标准测量的相关性高于0.30。报告有改善的患者显示出显著变化，效应量高于0.30。MDC（90%可信区间）大于MID。
HeRQoLEDv2包含新的暴饮暴食领域。它在群体水平上对变化有反应。需要对MID进行进一步研究。
