Poulsen, S, Lunn, S. Daniel S.I., Folke, S. Mathiesen, B.B., Katznelson, H. Fairburn, C.G. (2013). A Randomized Controlled Trial of Psychoanalytic Psychotherapy or Cognitive-Behavioral Therapy for Bulimia Nervosa. American Journal of Psychiatry, doi:10.1176/appi.ajp.2013.12121511
According to a new study published in the American Journal of Psychiatry, cognitive behavior therapy (CBT) is a more effective and efficient treatment for binging and purging associated with bulimia nervosa than psychoanalytic psychotherapy. In the current study, 70 patients with bulimia nervosa were randomized to receive either 2 years of weekly psychoanalytic psychotherapy (n=34) or 20 sessions of CBT during a 5-month period (n=36). The Eating Disorder Examination Interview was administered to measure participant progress, before treatment at baseline, after 5 months, and after 2 years. While both treatments resulted in improvement, there was a significant difference in outcome between the two groups. After 5 months of treatment, 42% of patients in the CBT group had stopped binging and purging compared to 6% of patients in the psychoanalytic psychotherapy group. At 2 years, 44% in the CBT group and 15% in the psychoanalytic psychotherapy group had stopped binging and purging. Despite the considerable difference in treatment duration, CBT was more effective and generally faster in relieving binging and purging.