title: Comparative distribution and validity of DSM-IV and DSM-5 diagnoses of eating disorders in adolescents from the community.
abstract: OBJECTIVE
  DSM-5 changes for eating disorders (EDs) aimed to reduce preponderance of non-specified cases and increase validity of specific diagnoses. The objectives were to estimate the combined effect of changes on prevalence of EDs in adolescents and examine validity of diagnostic groupings.
  
  
  METHODS
  A total of 3043 adolescents (1254 boys and 1789 girls, Mage  = 14.19 years, SD = 1.61) completed self-report questionnaires including the Eating Disorder Diagnostic Scale.
  
  
  RESULTS
  Prevalence of full-threshold EDs increased from 1.8% (DSM-IV) to 3.7% (DSM-5), with a higher prevalence of bulimia nervosa (1.6%) and the addition of the diagnosis of purging disorder (1.4%); prevalence of binge eating disorder was unchanged (0.5%), and non-specified cases decreased from 5.1% (DSM-IV) to 3.4% (DSM-5). Validation analyses demonstrated that DSM-5 ED subgroups better captured variance in psychopathology than DSM-IV subgroups.
  
  
  CONCLUSIONS
  Findings extend results from previous prevalence and validation studies into the adolescent age range. Improved diagnostic categories should facilitate identification of EDs and indicate targeted treatments.
authors.affiliation: University of Ottawa Institute of Mental Health Research, Ottawa, Canada.
authors.forename: Martine F
authors.initials: MF
authors.lastname: Flament
authors.forename: Annick
authors.initials: A
authors.lastname: Buchholz
authors.forename: Katherine
authors.initials: K
authors.lastname: Henderson
authors.forename: Nicole
authors.initials: N
authors.lastname: Obeid
authors.forename: Danijela
authors.initials: D
authors.lastname: Maras
authors.forename: Nick
authors.initials: N
authors.lastname: Schubert
authors.forename: Sabrina
authors.initials: S
authors.lastname: Paterniti
authors.forename: Gary
authors.initials: G
authors.lastname: Goldfield
mesh_terms: D000293:Adolescent; D056912:Binge-Eating Disorder / Q000175:diagnosis / Q000453:epidemiology; D052018:Bulimia Nervosa / Q000175:diagnosis / Q000453:epidemiology; D002170:Canada / Q000453:epidemiology; D039721:Diagnostic and Statistical Manual of Mental Disorders; D001068:Feeding and Eating Disorders / Q000145:classification / Q000175:diagnosis* / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008297:Male; D015995:Prevalence; D015203:Reproducibility of Results; D012959:Socioeconomic Factors; D011795:Surveys and Questionnaires
keywords: DSM-5; adolescent; eating disorders; prevalence; validation