title: Eating disorder not otherwise specified in adolescents.
abstract: OBJECTIVE
  To examine the frequency, type, and clinical severity of eating disorder not otherwise specified (EDNOS) in adolescents seeking treatment through an outpatient eating disorders service.
  
  
  METHODS
  Two hundred eighty-one consecutive referrals to an eating disorders program were assessed using the Eating Disorder Examination (EDE) and self-report measures of depression and self-esteem.
  
  
  RESULTS
  The majority of adolescents presented with EDNOS (59.1%; n = 166) relative to anorexia nervosa (AN; 20.3%; n = 57) and bulimia nervosa (BN; 20.6%; n = 58). Most EDNOS youths could be described as subthreshold AN (SAN; 27.7%; n = 46), subthreshold BN (SBN; 19.9%; n = 33), EDNOS purging (27.7%; n = 46), or EDNOS bingeing (6.0%; n = 10); yet 31 (18.7%) could not be categorized as such (EDNOS "other"). Overall differences in eating disorder pathology, depressive symptoms, and self-esteem emerged between the EDNOS types, wherein adolescents with EDNOS bulimic variants (SBN, EDNOS purging, and EDNOS bingeing) had more pathology than youths with SAN or EDNOS "other." There were no differences in these variables between AN and SAN; in contrast, compared with BN, youths with EDNOS bulimic variants reported lower EDE scores and higher self-esteem, although there were no between-group differences in depression.
  
  
  CONCLUSIONS
  As in adults with eating disorders, EDNOS predominates and is heterogeneous with regard to eating disorder pathology and associated features in an adolescent clinical sample. Lack of differences between AN and SAN suggests that the strict criteria for AN could be relaxed; differences between BN and EDNOS bulimic variants do not support their combination.
authors.affiliation: Drs. Eddy and Herzog are with the Massachusetts General Hospital and the Harvard Medical School, and Drs. Celio Doyle, Hoste, and le Grange are with the University of Chicago.. Electronic address: kamryn@gmail.com.
authors.forename: Kamryn T
authors.initials: KT
authors.lastname: Eddy
authors.affiliation: Drs. Eddy and Herzog are with the Massachusetts General Hospital and the Harvard Medical School, and Drs. Celio Doyle, Hoste, and le Grange are with the University of Chicago.
authors.forename: Angela
authors.initials: A
authors.lastname: Celio Doyle
authors.affiliation: Drs. Eddy and Herzog are with the Massachusetts General Hospital and the Harvard Medical School, and Drs. Celio Doyle, Hoste, and le Grange are with the University of Chicago.
authors.forename: Renee
authors.initials: R
authors.lastname: Rienecke Hoste
authors.affiliation: Drs. Eddy and Herzog are with the Massachusetts General Hospital and the Harvard Medical School, and Drs. Celio Doyle, Hoste, and le Grange are with the University of Chicago.
authors.forename: David B
authors.initials: DB
authors.lastname: Herzog
authors.affiliation: Drs. Eddy and Herzog are with the Massachusetts General Hospital and the Harvard Medical School, and Drs. Celio Doyle, Hoste, and le Grange are with the University of Chicago.
authors.forename: Daniel
authors.initials: D
authors.lastname: le Grange
mesh_terms: D000293:Adolescent; D000856:Anorexia Nervosa / Q000175:diagnosis / Q000453:epidemiology / Q000523:psychology; D052018:Bulimia Nervosa / Q000175:diagnosis / Q000453:epidemiology / Q000523:psychology; D002641:Chicago; D015897:Comorbidity; D003430:Cross-Sectional Studies; D003863:Depression / Q000175:diagnosis / Q000453:epidemiology / Q000523:psychology; D001068:Feeding and Eating Disorders / Q000175:diagnosis / Q000453:epidemiology* / Q000523:psychology; D005260:Female; D006785:Hospitals, University; D006801:Humans; D015994:Incidence; D008297:Male; D010555:Personality Inventory; D012017:Referral and Consultation / Q000706:statistics & numerical data; D012649:Self Concept