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Binge-eating disorder (BED), estimated to afflict 2% to 3% of the population, contributes to high rates of overweight and obesity and is frequently accompanied by comorbid psychiatric difficulties. Psychological treatments are generally more effective than medications and include behavioral weight-loss programs and cognitive-behavioral, interpersonal, and dialectical behavioral therapies. In a 20-week group-treatment study, 259 BED patients were randomized to therapist-led, therapist-assisted, or structured self-help groups, or a wait-list control (mean group size, 6; 88% women).
The CBT-based treatments consisted of 15 sessions, each lasting 80 minutes. Patients with psychosis, substance abuse, or other significant psychiatric or medical co…