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Suicidal thoughts and behaviours among construction workers: Identifying risks and protective factors.
Michael J Kyron1, Joseph A Carpini2, Lisette Kanse3
1Suicide Prevention and Resilience Research Centre, University of Western Australia, Australia; School of Psychological Science, University of Western Australia, Australia.
Journal of Affective Disorders
|November 15, 2025
Summary
Construction workers face high suicide rates. This study identified specific subgroups and risk factors like loneliness and bullying, highlighting the need for targeted mental health support in the industry.
Area of Science:
- Occupational Health
- Psychiatry
- Public Health
Background:
- The construction industry exhibits significantly higher suicide rates than other sectors.
- Understanding specific at-risk demographics and contributing factors is crucial for effective prevention.
Purpose of the Study:
- To pinpoint subgroups within the construction industry with elevated suicidal ideation and behaviors.
- To identify patterns of risk and protective factors influencing suicide risk in construction workers.
Main Methods:
- A cross-sectional survey of 1743 construction workers in Western Australia.
- Utilized decision tree and ensemble machine-learning models to analyze associations between suicidal ideation and personal/workplace factors.
Main Results:
- 10.3% reported suicidal ideation, 4.7% plans, and 1.1% attempts in the past year.
- Elevated rates were observed in drive-in drive-out, female, divorced/separated, and non-heterosexual workers.
- Loneliness, workplace bullying, and substance use were key risk factors; social support was protective.
Conclusions:
- Findings indicate a need for tailored workplace suicide prevention and mental health programs.
- Proactive identification and intervention strategies are essential for construction workers at higher risk.
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