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Citation
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Mahar AL, Aiken AB, Whitehead M, Tien H, Cramm H, Fear NT, Kurdyak P. BMJ Open 2019; 9(6): e027343. |
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Affiliation
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Institute for Mental Health Policy Research, Centre for Addiction and Mental Health, Toronto, Ontario, Canada. |
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Abstract
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OBJECTIVES: To compare the risk of death by suicide in male veterans with age-matched civilians.
DESIGN: Retrospective cohort study linking provincial administrative databases between 1990 and 2013 with follow-up complete until death or December 31, 2015. SETTING: Population-based study in Ontario, Canada. PARTICIPANTS: Ex-serving Canadian Armed Forces and Royal Canadian Mounted Police veterans living in Ontario who registered for provincial health insurance were included. A civilian comparator group was matched 4:1 on age and sex. MAIN OUTCOME: Death by suicide was classified using standard cause of death diagnosis codes from a provincial registry of mandatory data collected from death certificates. Fine and Gray sub-distribution hazards regression compared the risk of death by suicide between veterans and civilians. Analyses were adjusted for age, residential region, income, rurality and major physical comorbidities.
RESULTS: 20 397 male veterans released to Ontario between 1990 and 2013 and 81 559 age-sex matched civilians were included. 4.2% of veterans died during the study time frame, compared with 6.5% of the civilian cohort. Death by suicide was rare in both cohorts, accounting for 4.6% and 3.6% of veteran and civilian deaths, respectively. After adjustment for confounders, veterans had an 18% lower risk of dying from causes other than suicide (HR 0.82, 95% CI 0.76 to 0.89) and a similar risk of dying by suicide (HR 1.01, 95% CI 0.71 to 1.43), compared with civilians.
CONCLUSIONS: Deaths by suicide were rare in male veterans residing in Ontario. Our findings demonstrate that veterans had a similar risk of suicide-related mortality as an age-matched civilian population. A better understanding of effective suicide prevention as well as clarifying pathways to seeking and receiving mental health supports and services are important areas for future consideration.
© Author(s) (or their employer(s)) 2019. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.
Language: en |