Department of Psychology, University of Rome La Sapienza, Via dei Marsi 78, 00185 Roma, Italy.
Eat Weight Disord. 2011 Sep;16(3):e188-98. doi: 10.1007/BF03325131.
The aim of the present study was to evaluate the concurrent validity, specificity and sensitivity of the Disordered Eating Questionnaire (DEQ). The DEQ is a brief questionnaire (24 items), that can be used for epidemiological screenings. It addresses face valid questions to evaluate frequency and intensity of disordered eating attitudes and behaviors over a time frame of three months.
The study was conducted using a cross-sectional design.
The DEQ was completed by 190 eating disordered patients (73 patients with Anorexia, 48 with Bulimia, 11 with Binge Eating Disorder, 48 with Eating Disorders Not Otherwise Specified, 10 recovered patients) and 88 healthy controls.
In the whole group, DEQ scores were highly correlated with the scores of the Eating Disorder Examination (EDE 12.0D). Sensitivity and specificity were evaluated. In the female subsample, the ROC curves indicate that a cut-off score of 30 allows to obtain a sensitivity of 82% and a specificity of 68%. A formative approach of Structural Equationing Model confirm the construct validity of the instrument.
The DEQ confirm to be a valid and reliable instrument, whose sensitivity and specificity is comparable to that of the EAT-40 even though it has fewer items.
本研究旨在评估饮食紊乱问卷（DEQ）的同时效度、特异性和敏感性。DEQ 是一个简短的问卷（24 个项目），可用于进行流行病学筛查。它通过询问与饮食紊乱相关的问题，评估过去三个月内出现饮食紊乱态度和行为的频率和强度。
本研究采用横断面设计。
DEQ 由 190 名饮食障碍患者（73 名神经性厌食症患者、48 名贪食症患者、11 名暴食障碍患者、48 名未特定的饮食障碍患者、10 名康复患者）和 88 名健康对照完成。
在整个组中，DEQ 得分与饮食障碍检查（EDE 12.0D）的得分高度相关。评估了敏感性和特异性。在女性亚组中，ROC 曲线表明，30 分的截断值可获得 82%的敏感性和 68%的特异性。结构方程模型的形成方法证实了该工具的结构效度。
DEQ 是一种有效且可靠的工具，其敏感性和特异性与 EAT-40 相当，尽管它的项目较少。
