Pinheiro Andrea Poyastro, Bulik Cynthia M, Sullivan Patrick F, Machado Paulo P P
Department of Psychiatry, University of North Carolina at Chapel Hill, North Carolina, USA.
Int J Eat Disord. 2008 Apr;41(3):251-8. doi: 10.1002/eat.20497.
To investigate whether clusters of bulimic symptoms exist in a community sample of young Portuguese women.
A total of 2028 females, aged 12-23 years, completed the Eating Disorder Examination Questionnaire (EDE-Q). Latent class analysis was applied to the seven bulimic symptoms, age, and body mass index.
The selected 4-class solution yielded a "healthy" class, reporting minimal binge eating and purging behaviors. A "binge eating" class, resembled binge eating disorder. A "purging" class had infrequent binge eating, but frequent compensatory behaviors. Finally, in a "classic bulimia nervosa" class, binge eating episodes were reported by 95% of participants, and compensatory behaviors were frequently endorsed. EDE -Q global and subscale scores differed across all latent classes.
In the community, three natural patterns exist: binge eating plus compensatory behaviors, binge eating only, and purging in the absence of binge eating. These results have implications for future revisions of eating disorders nosology.
调查葡萄牙年轻女性社区样本中是否存在暴食症状群。
共有2028名年龄在12至23岁之间的女性完成了饮食失调检查问卷（EDE-Q）。对七种暴食症状、年龄和体重指数进行了潜在类别分析。
所选的四类解决方案产生了一个“健康”类别，报告的暴饮暴食和清除行为极少。一个“暴饮暴食”类别，类似于暴饮暴食障碍。一个“清除”类别暴饮暴食不频繁，但代偿行为频繁。最后，在一个“典型神经性贪食症”类别中，95%的参与者报告有暴饮暴食发作，且代偿行为经常被认可。EDE-Q总体和子量表得分在所有潜在类别中均有差异。
在社区中存在三种自然模式：暴饮暴食加代偿行为、仅暴饮暴食以及无暴饮暴食时的清除行为。这些结果对饮食失调分类学的未来修订具有启示意义。
