title: Prediction of outcome in bulimia nervosa by early change in treatment.
abstract: OBJECTIVE
  The authors' goal was to identify predictors of treatment response in bulimia nervosa and, in particular, to attempt to replicate and extend the observation that early change predicts outcome.
  
  
  METHODS
  Predictors of response at the end of treatment and 8-month follow-up were sought from a group of 220 women treated with either cognitive behavior therapy or interpersonal psychotherapy.
  
  
  RESULTS
  Early change in frequency of purging was the best predictor of response at the end of treatment and at 8-month follow-up.
  
  
  CONCLUSIONS
  Early change in treatment is a robust and potent predictor of immediate and longer-term outcome in bulimia nervosa.
authors.affiliation: Oxford University Department of Psychiatry, Warneford Hospital, Oxford OX3 7JX, U.K.
authors.forename: Christopher G
authors.initials: CG
authors.lastname: Fairburn
authors.forename: W Stewart
authors.initials: WS
authors.lastname: Agras
authors.forename: B Timothy
authors.initials: BT
authors.lastname: Walsh
authors.forename: G Terence
authors.initials: GT
authors.lastname: Wilson
authors.forename: Eric
authors.initials: E
authors.lastname: Stice
mesh_terms: D015992:Body Mass Index; D002032:Bulimia / Q000628:therapy*; D015928:Cognitive Behavioral Therapy; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D011379:Prognosis; D011613:Psychotherapy / Q000379:methods*; D013997:Time Factors; D016896:Treatment Outcome; D014839:Vomiting / Q000453:epidemiology / Q000517:prevention & control