Cognitive-behavioral therapy for subthreshold bulimia nervosa: A case series
C.B. Peterson, K.B. Miller, M.G. Willer, J. Ziesmer, N. Durkin, A. Arikian, and S.J. Crow
Department of Psychiatry, University of Minnesota Medical School, Minneapolis, Minnesota, USA

Abstract

The extent to which cognitive-behavioral therapy (CBT) is helpful in treating individuals with bulimic symptoms who do not meet full criteria for bulimia nervosa is unclear. The purpose of this investigation was to examine the potential efficacy of CBT for eating disorder individuals with bulimic symptoms who do not meet full criteria for bulimia nervosa. Twelve participants with subthreshold bulimia nervosa were treated in a case series with 20 sessions of CBT. Ten of the 12 participants (83.3%) completed treatment. Intent-to-treat abstinent percentages were 75.0% for objectively large episodes of binge eating (OBEs), 33.3% for subjectively large episodes of binge eating (SBEs), and 50% for purging at end of treatment. At one year follow-up, 66.7% were abstinent for OBEs, 41.7% for SBEs, and 50.0% for purging. The majority also reported improvements in associated symptoms. This case series provides support for the use of CBT with individuals with subthreshold bulimia nervosa. (EatingWeight Disord. 16: e204-e208, 2011). ©2011, Editrice Kurtis

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