Edler Crystal, Haedt Alissa A, Keel Pamela K
Department of Psychology, University of Iowa, Iowa City, Iowa 52242, USA.
Int J Eat Disord. 2007 Sep;40(6):515-20. doi: 10.1002/eat.20416.
Previous studies indicate a distinction between those who use one versus multiple methods of purging, but these studies have not controlled for differences in purging frequency. The current study examined whether purging frequency or the use of multiple purging (MP) methods provides more information about eating disorder severity.
Existing data were reanalyzed to examine associations between facets of purging and psychological measures among women with bulimia nervosa, purging disorder, and controls. Analyses compared the use of MP methods and purging frequency as indicators of eating pathology.
MP methods demonstrated associations with greater eating disorder severity; purging frequency was associated with increased binge frequency and general psychopathology.
The presence of MP methods provides more information about eating disorder severity than purging frequency, which seems to be a marker of related psychopathology.
以往研究表明，使用单一与多种清除方法的人群之间存在差异，但这些研究未对清除频率的差异进行控制。本研究探讨清除频率或多种清除（MP）方法的使用是否能提供更多关于饮食失调严重程度的信息。
重新分析现有数据，以检验神经性贪食症、清除障碍女性及对照组中清除方面与心理测量指标之间的关联。分析比较了MP方法的使用和清除频率作为饮食病理学指标的情况。
MP方法显示出与更严重的饮食失调相关；清除频率与暴饮暴食频率增加及一般精神病理学相关。
与清除频率相比，MP方法的存在能提供更多关于饮食失调严重程度的信息，清除频率似乎是相关精神病理学的一个指标。
