4.6 Article

Epidemiology of Anorexia Nervosa in Men: A Nationwide Study of Finnish Twins

Journal

PLOS ONE
Volume 4, Issue 2, Pages -

Publisher

PUBLIC LIBRARY SCIENCE
DOI: 10.1371/journal.pone.0004402

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Funding

  1. National Graduate School for Clinical Investigation
  2. National Institute on Alcohol Abuse and Alcoholism [AA-12502]
  3. Academy of Finland [100499, 201461]
  4. Academy of Finland Centre of Excellence in Complex Disease Genetics
  5. Academy of Finland (AKA) [201461, 201461] Funding Source: Academy of Finland (AKA)

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Background: To examine the epidemiology of anorexia nervosa in men, we screened Finnish male twins born in 1975-79. Methods and Findings: Men (N = 2122) from FinnTwin16 birth cohorts were screened for lifetime eating disorders by a questionnaire. The screen positives (N = 18), their male co-twins (N = 10) and those with lifetime minimum BMI <= 17.5 (N = 21) were administered the Structured Clinical Interview for DSM-IV anorexia nervosa. The incidence rate of anorexia nervosa for the presumed peak age of risk (10-24y) was 15.7 per 100 000 person-years; its lifetime prevalence was 0.24%. All probands had recovered from eating disorders, but suffered from substantial psychiatric comorbidity, which also manifested in their co-twins. Additionally, male co-twins displayed significant dissatisfaction with body musculature, a male-specific feature of body dysmorphic disorder. Conclusions: Anorexia nervosa in males in the community is more common, transient and accompanied by more substantial comorbidity than previously thought.

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