Factors predicting suicide in psychotic patients

  • R. Axelsson
  • M. Lagerkvist-Briggs
Original Articles

Summary

Death rate and causes of death during a mean period of 5.8 years were investigated in 250 male inpatients with psychotic disorders (DSM-III). Fifty patients died during the observation period. Suicide was confirmed in 11 of these patients and could not be excluded in 7 cases, where the cause of death was reported as uncertain. Clinical and neurobiological characteristics (DST-non-suppression, CSF proteins, and monomaine metabolites) were compared in patients who committed suicide and non-suicide patients of the same age, with or without suicidal behaviour. A highly increased mortality rate was seen among the patients and the rate of suicide was more than 20 times higher than that expected in a normal population of the same age. The estimated annual incidence of suicide was 2.5%, 1.3%, 1.0% and 0.4% for patients with bipolar disorder, paranoid psychosis, major depression and schizophrenic disorder, respectively. The following factors were significantly positively correlated with completed suicide: depressive mood, elated mood, paranoid ideas, and paternal age. All suicides had previously shown suicidal behaviour and the suicide occurred during or shortly after a period of hospitalisation. No correlations were found with age at onset of illness, duration of illness, substance abuse or neurobiological parameters.

Key words

Suicide Psychoses Mortality rate DSM-III diagnoses Predictive factors 

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Copyright information

© Springer-Verlag 1992

Authors and Affiliations

  • R. Axelsson
    • 1
  • M. Lagerkvist-Briggs
    • 2
  1. 1.Department of Psychiatry and NeurochemistryUniversity of Lund, St. Lars HospitalLundSweden
  2. 2.Department of Psychiatry IIIUniversity of Göteborg, Lillhagen HospitalGöteborgSweden

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