Attachment scales predict outcome in a randomized controlled trial of two group therapies for binge eating disorder: An aptitude by treatment interaction

Resume Resumen Patients (N=135) with binge eating disorder (BED) were randomized to a control condition or to one of two 16-session group treatments: group cognitive–behavioral therapy (GCBT) or group psychodynamic interpersonal psychotherapy (GPIP). The two treatments performed equally well, and each resulted in reduced days binged compared with the wait-list control condition. Twelve-month follow-up indicated that improvements were maintained in days binged and in other outcome variables. For women who completed GPIP, higher attachment anxiety was related to improvements in days binged by posttreatment. On the other hand, for women who completed GCBT, lower attachment anxiety was associated with improvements in days binged by posttreatment. Higher attachment avoidance was related to dropping out of GCBT. Although both GPIP and GCBT reduced binge eating, the results indicated that individual outcomes differ across treatments based on level of attachment anxiety and avoidance. Zusammenfassung Bin...