title: Predictors and mediators of treatment outcome in patients with binge eating disorder.
abstract: A randomized controlled trial (N=52) was conducted comparing cognitive-behavioral therapy with a waiting list control group to identify mediators and predictors of treatment outcome. Reduction of weight concerns mediated abstinence of binge eating at post-treatment. Abstinence was marginally mediated by changes in eating and shape concerns, depressive symptoms and global severity of general psychopathology. Neither treatment outcome nor status at 1-year follow-up could be predicted by severity of eating disorder, comorbid psychopathology or maladaptive core beliefs at baseline or at post-treatment. The only predictor for abstinence at both post-treatment and 1-year follow-up was the coping style palliative reacting: higher scores predicted less favorable outcomes. Lower expression of emotions at post-treatment predicted more reduction of eating disorder psychopathology at follow-up. No other patient characteristics allowing treatment-patient matching could be identified.
authors.affiliation: Center for Eating Disorders Ursula, PO Box 422, 2260 AK Leidschendam, The Netherlands. a.dingemans@centrumeetstoornissen.nl
authors.forename: Alexandra E
authors.initials: AE
authors.lastname: Dingemans
authors.forename: Philip
authors.initials: P
authors.lastname: Spinhoven
authors.forename: Eric F
authors.initials: EF
authors.lastname: van Furth
mesh_terms: D000223:Adaptation, Psychological; D000328:Adult; D052018:Bulimia Nervosa / Q000523:psychology / Q000628:therapy*; D015928:Cognitive Behavioral Therapy / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D011569:Psychiatric Status Rating Scales; D011594:Psychometrics; D012959:Socioeconomic Factors; D016896:Treatment Outcome