García-García Eduardo, Vázquez-Velázquez Verónica, López-Alvarenga Juan Carlos, Arcila-Martínez Denise
Departamento de Endocrinología y Metabolismo, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga No. 15 colonia Sección XVI, Delegación Tlalpan, México, DF.
Salud Publica Mex. 2003 May-Jun;45(3):206-10.
To assess the diagnostic utility and internal validity of the Eating Disorder Inventory (EDI-2) in Mexican women.
An observational, cross-sectional study was conducted between October 2000 and January 2001. The sample population consisted of two groups of women: patients diagnosed with anorexia nervosa or bulimia, but no other psychiatric pathology, seen by psychiatrists at the Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán (National Institute of Medical Sciences and Nutrition Salvador Zubirán), and a randomly selected sample of women from a school in Mexico City. A structured interview was conducted using SCID/DSM-IV as the gold standard. Finally the EDI-2 was administered. Statistical analysis was performed using Student's t test for independent samples, Cronbach's alpha test, and calculation of sensitivity, specificity, and positive and negative predictive values.
No significant differences were found for weight, height, and body mass index. Women with no eating disorders were younger than those with eating disorders (16.7 +/- 2.8 vs. 19.9 +/- 4.3, p = 0.004). The EDI-2 total score was clearly different between the groups (53.8 +/- 32.4 vs. 146.3 +/- 45.6 respectively, p < 0.001). All Cronbach's alpha coefficients for all subscales were over 0.85. For the total score, a sensitive cutoff point of 80 (sensitivity 90.9, 95% confidence interval [CI] 69.4 to 98.4; specificity 80, 95% CI 58.7 to 92.4) and a specific cutoff point of 105 (sensitivity 81.8, 95% CI 59 to 94; specificity 89.3, 95% CI 70.6 to 97.2) are recommended.
The EDI-2 has a high internal validity and should be a useful tool to assess eating disorders.
评估饮食失调问卷（EDI - 2）在墨西哥女性中的诊断效用和内部效度。
于2000年10月至2001年1月进行了一项观察性横断面研究。样本群体由两组女性组成：在萨尔瓦多·苏比拉án国家医学与营养科学研究所（萨尔瓦多·苏比拉án国家医学科学与营养研究所）被精神科医生诊断为神经性厌食症或贪食症但无其他精神病理学问题的患者，以及从墨西哥城一所学校随机抽取的女性样本。使用SCID/DSM - IV作为金标准进行结构化访谈。最后进行EDI - 2测试。采用独立样本的学生t检验、克朗巴哈α检验以及敏感性、特异性、阳性和阴性预测值的计算进行统计分析。
在体重、身高和体重指数方面未发现显著差异。无饮食失调的女性比有饮食失调的女性更年轻（16.7±2.8岁对19.9±4.3岁，p = 0.004）。两组之间EDI - 2总分明显不同（分别为53.8±32.4和146.3±45.6，p < 0.001）。所有子量表的克朗巴哈α系数均超过0.85。对于总分，建议敏感临界值为80（敏感性90.9，95%置信区间[CI] 69.4至98.4；特异性80，95% CI 58.7至92.4），特异性临界值为105（敏感性81.8，95% CI 59至94；特异性89.3，95% CI 70.6至97.2）。
EDI - 2具有较高的内部效度，应是评估饮食失调的有用工具。
