title: Incidence and weight trajectories of binge eating disorder among young women in the community.
abstract: OBJECTIVE
  To assess the population prevalence and incidence of binge eating disorder (BED) among young women.
  
  
  METHODS
  In a nationwide longitudinal study of Finnish twins born 1975-1979, the women participated in five surveys from age 16 until their mid-thirties. At Wave 4 (mean age 24 years), the women (N = 2,825) underwent a 2-stage screening for eating disorders. We assessed the lifetime prevalence, incidence, and clinical characteristics of DSM-5 BED.
  
  
  RESULTS
  We detected 16 women who met DSM-5 criteria for BED, yielding a lifetime prevalence of 0.7% (95% confidence interval [CI] 0.4-1.2%). The incidence of BED among women between 10 and 24 years of age was 35 (95% CI 20-60) per 100,000 person-years. The mean age of onset of BED was 19 years (range 13-27 years). Of the cases, 13/16 (81%) were currently ill. Duration of illness at the time of assessment ranged from less than a year to 13 years (median 6 years). Of women with BED, only two had a history of other eating disorders, but six had lifetime major depressive disorder. Two-thirds of the women with BED belonged to the highest weight quartile at age 16, and their mean BMI at age 22-27 year was 26.2 kg/m(2) (range 22.1-32.5 kg/m(2)).
  
  
  CONCLUSIONS
  Incident BED as defined by DSM-5 was relatively rare among younger women and was often preceded by relative overweight. BED often occurred without a history of other eating disorders, but comorbidity with major depressive disorder was common.
authors.affiliation: Department of Public Health, University of Helsinki, Helsinki, Finland.|Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
authors.forename: Linda
authors.initials: L
authors.lastname: Mustelin
authors.affiliation: Department of Public Health, University of Helsinki, Helsinki, Finland.|Department of Adolescent Psychiatry, Helsinki University Central Hospital, Helsinki, Finland.|Institute of Clinical Medicine, Child Psychiatry, University of Turku, Turku, Finland.|Department of Mental Health and Substance Abuse Services, National Institute for Health and Welfare, Helsinki, Finland.
authors.forename: Anu
authors.initials: A
authors.lastname: Raevuori
authors.affiliation: Parnassia Psychiatric Institute, Hague, The Netherlands.|Department of Psychiatry, University Medical Center Groningen, Groningen, The Netherlands.|Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, New York.
authors.forename: Hans Wijbrand
authors.initials: HW
authors.lastname: Hoek
authors.affiliation: Department of Public Health, University of Helsinki, Helsinki, Finland.|Department of Mental Health and Substance Abuse Services, National Institute for Health and Welfare, Helsinki, Finland.|Institute for Molecular Medicine Finland FIMM, University of Helsinki, Helsinki, Finland.
authors.forename: Jaakko
authors.initials: J
authors.lastname: Kaprio
authors.affiliation: Department of Public Health, University of Helsinki, Helsinki, Finland.
authors.forename: Anna
authors.identifier: http://orcid.org/0000-0002-6713-7488
authors.initials: A
authors.lastname: Keski-Rahkonen
mesh_terms: D000293:Adolescent; D000328:Adult; D017668:Age of Onset; D056912:Binge-Eating Disorder / Q000453:epidemiology* / Q000473:pathology; D015992:Body Mass Index; D001835:Body Weight; D002648:Child; D015897:Comorbidity; D003865:Major Depressive Disorder / Q000453:epidemiology; D005260:Female; D005387:Finland / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D008137:Longitudinal Studies; D050177:Overweight / Q000453:epidemiology; D015995:Prevalence; D011795:Surveys and Questionnaires; D055815:Young Adult
keywords: binge eating disorder; eating disorders; population study; twin study