title: An epidemiological study of trichotillomania in Israeli adolescents.
abstract: OBJECTIVE
  To determine the prevalence of trichotillomania and comorbid psychopathology in nonreferred adolescents.
  
  
  METHODS
  Using a questionnaire and interview, 794 Israeli 17-year-olds were screened for current and past hair-pulling and comorbid psychopathology.
  
  
  RESULTS
  Eight current or past hair-pullers (5 male, 3 female) were identified, yielding a lifetime prevalence of hair-pulling of 1%. Four subjects reported current hair-pulling (point prevalence of 0.5%). None of these reported alopecia, distress, or tension before pulling; only two reported relief after pulling. Thus, none met the full DSM-III-R criteria for trichotillomania. Four subjects reported past but not current hair-pulling, with bald spots in two cases. Three of the four current hair-pullers had significant obsessive-compulsive symptoms, a significantly elevated rate compared to the entire screened population. Two subjects with obsessive-compulsive disorder also had generalized anxiety disorder and, in one case, chronic simple vocal tics. Hair-pullers did not differ significantly from non-hair-pullers in IQ, physical fitness, and overall competency, or prevalence of other comorbid disorders.
  
  
  CONCLUSIONS
  In a community adolescent sample, only 25% of hair-pullers reported resulting bare spots and none endorsed both rising tension and subsequent relief. The prevalence of obsessive-compulsive symptoms was significantly elevated in these nonreferred hair-pullers.
authors.affiliation: Yale Child Study Center, Yale University School of Medicine, New Haven, CT 06520-7900, USA.
authors.forename: R A
authors.initials: RA
authors.lastname: King
authors.forename: A H
authors.initials: AH
authors.lastname: Zohar
authors.forename: G
authors.initials: G
authors.lastname: Ratzoni
authors.forename: M
authors.initials: M
authors.lastname: Binder
authors.forename: S
authors.initials: S
authors.lastname: Kron
authors.forename: A
authors.initials: A
authors.lastname: Dycian
authors.forename: D J
authors.initials: DJ
authors.lastname: Cohen
authors.forename: D L
authors.initials: DL
authors.lastname: Pauls
authors.forename: A
authors.initials: A
authors.lastname: Apter
mesh_terms: D000293:Adolescent; D017668:Age of Onset; D001289:Attention Deficit Disorder with Hyperactivity / Q000150:complications / Q000175:diagnosis; D005260:Female; D006801:Humans; D015994:Incidence; D007557:Israel / Q000453:epidemiology; D008297:Male; D009771:Obsessive-Compulsive Disorder / Q000150:complications / Q000175:diagnosis; D015995:Prevalence; D011569:Psychiatric Status Rating Scales; D014256:Trichotillomania / Q000150:complications / Q000175:diagnosis / Q000453:epidemiology*