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Suicides by persons reported as missing prior to death: a retrospective cohort study
Jerneja Sveticic1, Lay San Too, Diego De Leo
1Australian Institute for Suicide Research and Prevention, World Health Organization Collaborating Centre for Research and Training in Suicide Prevention, National Centre of Excellence in Suicide Prevention, Griffith University, Mt Gravatt, Australia.
BMJ Open
|March 29, 2012
Summary
Suicides by missing persons differ significantly from other suicide cases, often involving motor vehicle exhaust, jumping, or drowning, and occurring in outdoor locations. These findings aid in developing targeted suicide prevention strategies for this vulnerable group.
Area of Science:
- Forensic Psychology
- Public Health
- Suicidology
Background:
- Suicide among missing persons presents unique challenges for identification and prevention.
- Understanding the distinct characteristics of these suicides is crucial for developing effective interventions.
Purpose of the Study:
- To compare the characteristics of suicides among missing persons with those of other suicide cases.
- To identify specific demographic, method, and locational differences.
Main Methods:
- A retrospective cohort study was conducted in Queensland, Australia, from 1994 to 2007.
- Data from 194 suicides by missing persons and 7545 other suicides were analyzed.
- Statistical analyses included chi-squared tests and binary logistic regression.
Main Results:
- Missing persons were more likely to die by motor vehicle exhaust, jumping from heights, or drowning, and less likely by hanging.
- Suicides by missing persons frequently occurred in natural outdoor locations.
- Factors such as living alone, physical illness, and alcohol consumption history differed between the groups, with missing persons more likely to be institutionalized and to have communicated suicidal intent.
Conclusions:
- Suicides by missing persons exhibit distinct characteristics compared to other suicide cases.
- Findings inform the development of targeted suicide prevention strategies and risk assessment for missing persons.
- Implications for law enforcement investigations and intervention protocols are highlighted.
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