title: Do adolescents with eating disorder not otherwise specified or full-syndrome bulimia nervosa differ in clinical severity, comorbidity, risk factors, treatment outcome or cost?
abstract: OBJECTIVE
  We wanted to know whether adolescents with eating disorder not otherwise specified (EDNOS) differ from those with bulimia nervosa (BN) in clinical features, comorbidity, risk factors, treatment outcome or cost.
  
  
  METHODS
  Adolescents with EDNOS (n = 24) or BN (n = 61) took part in a trial of family therapy versus guided self-care. At baseline, eating disorder symptoms, risk factors, and costs were assessed by interview. Patients were reinterviewed at 6 and 12 months.
  
  
  RESULTS
  Compared with EDNOS, BN patients binged, vomited and purged significantly more, and were more preoccupied with food. Those with EDNOS had more depression and had more current and childhood obsessive-compulsive disorder. 66.6% of EDNOS versus 27.8% of BN patients were abstinent from bingeing and vomiting at 1 year. Diagnosis did not moderate treatment outcome. Costs did not differ between groups.
  
  
  CONCLUSIONS
  EDNOS in adolescents is not trivial. It has milder eating disorder symptoms but more comorbidity than BN.
authors.affiliation: Section of Eating Disorders, Institute of Psychiatry, King's College, London, United Kingdom. u.schmidt@iop.kcl.ac.uk
authors.forename: Ulrike
authors.initials: U
authors.lastname: Schmidt
authors.forename: Sally
authors.initials: S
authors.lastname: Lee
authors.forename: Sarah
authors.initials: S
authors.lastname: Perkins
authors.forename: Ivan
authors.initials: I
authors.lastname: Eisler
authors.forename: Janet
authors.initials: J
authors.lastname: Treasure
authors.forename: Jeny
authors.initials: J
authors.lastname: Beecham
authors.forename: Mark
authors.initials: M
authors.lastname: Berelowitz
authors.forename: Liz
authors.initials: L
authors.lastname: Dodge
authors.forename: Susie
authors.initials: S
authors.lastname: Frost
authors.forename: Mari
authors.initials: M
authors.lastname: Jenkins
authors.forename: Eric
authors.initials: E
authors.lastname: Johnson-Sabine
authors.forename: Saskia
authors.initials: S
authors.lastname: Keville
authors.forename: Rebecca
authors.initials: R
authors.lastname: Murphy
authors.forename: Paul
authors.initials: P
authors.lastname: Robinson
authors.forename: Suzanne
authors.initials: S
authors.lastname: Winn
authors.forename: Irene
authors.initials: I
authors.lastname: Yi
mesh_terms: D000293:Adolescent; D000328:Adult; D052018:Bulimia Nervosa / Q000191:economics / Q000453:epidemiology / Q000628:therapy; D015897:Comorbidity; D003365:Costs and Cost Analysis; D005196:Family Therapy / Q000379:methods*; D005260:Female; D006801:Humans; D016032:Randomized Controlled Trials as Topic; D012307:Risk Factors; D012648:Self Care; D020377:Self Efficacy; D011795:Surveys and Questionnaires; D016896:Treatment Outcome