Suicide in the Northern Territory, 1981–2002

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Abstract
To examine trends in suicide in the Northern Territory between 1981 and 2002, and demographic and other characteristics of people completing suicide in the Top End region in 2000-2002. Retrospective descriptive analysis of Australian Bureau of Statistics death registration data and data from the NT Coroner's Office. All residents of the NT who completed suicide between 1981 and 2002. Changes in the age-adjusted and age- and sex-specific rates of suicide in Indigenous and non-Indigenous NT residents over time; prior diagnosis of mental illness and use of alcohol or other drugs by those completing suicide. The age-adjusted suicide rate in the NT increased significantly between 1981 and 2002 (P < 0.001). Over this period, the rates among the Indigenous and non-Indigenous male populations increased by 800% (P < 0.05) and 30% (P > 0.05), respectively. Indigenous males aged under 45 years and non-Indigenous males aged 65 years and over were most at risk. In the Top End, a history of diagnosed mental illness was present in 49% of suicide cases, and misuse of alcohol or other drugs around the time of death was associated with 72% of suicide cases. Our study highlights the rising rate of suicide in the NT and suggests that suicide prevention initiatives need to specifically target Indigenous and non-Indigenous males in the age groups most at risk.