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Suicidal thoughts and behaviours among construction workers: Identifying risks and protective factors.

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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.

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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.