Comparison of individual and group cognitive behavioral therapy for binge eating disorder A randomized, two -year follow-up study
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Introduction: Binge eating disorder (BED) is a syndrome characterized by frequent and persistent overeating episodes that are accompanied by feelings of loss of control and marked distress, in the absence of regular compensatory behaviors. Few long-term follow-up studies evaluated the response to psychotherapeutic interventions in binge eating disorder (BED). The effectiveness of individual and group cognitive-behavioral therapy, and the possible predictors of outcome were evaluated in a randomized controlled trial. Methods: At the beginning, at the end of treatments, and two years after the end of treatments, 286 patients affected by threshold or sub threshold BED were assessed using a clinical interview and self-reported questionnaires evaluating the eating attitudes and behavior, emotional eating, and general psychopathology. The following outcome measures were considered: recovery at two-year follow-up, weight loss, treatment resistance, relapse, and diagnostic change. Results: Both treatments showed similar response in terms of all outcome measures in the long-term, and determined a significant reduction of binge eating frequency, and reduction of weight. Overweight during childhood, full blown BED diagnosis, and high emotional eating were predictors of treatment resistance. The absence of a history of alcohol derivatives consumption, lower emotional eating and binge eating severity at baseline were predictors of full recovery in the long-term. A low emotional eating was found to be the only predictor of weight reduction. Conclusion: Treatments considering the relationships between binge eating and emotional eating could improve the outcome of BED patients.
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