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People with mental health disorders are at increased risk of death from homicide

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Question: Are individuals with diagnosed mental health disorders at increased risk of death due to homicide compared with the general population?

Population: A nationwide cohort of 7 253 516 adults living in Sweden on 1 January 2001.

Setting: Sweden, 2001–2008.

Prognostic factors: Primary or secondary diagnosis of a mental disorder as recorded in the Swedish Outpatient Registry or the Swedish Hospital Registry between 1 January 2001 and 31 December 2008. Mental health disorders were examined according to ICD-10 codes for: any mental disorder (F00–F69); substance-use disorders (SUD) (F10–F19); schizophrenia or schizotypal and delusional disorders (F20–F29); affective disorders (F30–F39); neurotic, stress-related and somatoform disorders (F40–48) and personality disorders (F60–F61). Specific disorders that were examined separately from these broader categories included schizophrenia (F20), depression (F32–F33) and anxiety disorders (F40–F41).

Outcomes: Death from homicide during the follow-up period, identified as ICD-10 codes X85-Y09 in the Swedish death registry. ICD-10 codes for deaths of undetermined intent (Y10–Y34) were not included. The association between mental disorder diagnosis and death …

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  • Sources of funding National Institute of Drug Abuse, Swedish Research Council, ALF project grant, Lund, Sweden.


  • Competing interests None.

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