title: Sleep disturbances and suicidal behavior in patients with major depression.
abstract: BACKGROUND
  The purpose of this study was to examine the association between sleep disturbances and suicidal behavior in patients with major depression (N = 113).
  
  
  METHODS
  The sleep symptomatology of each patient was ascertained from the Schedule for Affective Disorders and Schizophrenia (SADS) questions concerning sleep in the section on major depression. The patients were retrospectively classified as having hypersomnia (N = 20), insomnia (N = 69), and no sleep disturbance (N = 24). The SADS suicide subscale was used to rate the severity of active suicidality.
  
  
  RESULTS
  The patients with hypersomnia and insomnia had significantly (p < .05) higher scores on the SADS suicide subscale than those without sleep disturbance. We also found that the patients with insomnia and hypersomnia were significantly (p < .001) more likely to become suicidal than the others.
  
  
  CONCLUSIONS
  These data demonstrate that both insomnia and hypersomnia are associated with suicidal behavior in patients with major depression.
authors.affiliation: Department of Psychiatry, Yüzüncli Yil University School of Medicine, Van, Turkey.
authors.forename: M Y
authors.initials: MY
authors.lastname: Ağargün
authors.forename: H
authors.initials: H
authors.lastname: Kara
authors.forename: M
authors.initials: M
authors.lastname: Solmaz
mesh_terms: D000328:Adult; D015897:Comorbidity; D003866:Depressive Disorder / Q000175:diagnosis* / Q000453:epidemiology / Q000523:psychology; D006970:Disorders of Excessive Somnolence / Q000175:diagnosis / Q000453:epidemiology; D005260:Female; D006801:Humans; D008297:Male; D011569:Psychiatric Status Rating Scales; D012189:Retrospective Studies; D012307:Risk Factors; D007319:Sleep Initiation and Maintenance Disorders / Q000175:diagnosis / Q000453:epidemiology; D012893:Sleep Wake Disorders / Q000175:diagnosis* / Q000453:epidemiology; D013405:Suicide / Q000523:psychology* / Q000706:statistics & numerical data