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Adults with major traumatic injuries have a significantly higher risk of suicidality compared to the general population. This increased risk of suicide or suicide attempt persists even after accounting for mental health and socioeconomic factors.

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Area of Science:

  • Trauma research
  • Psychosocial sequelae
  • Epidemiology

Background:

  • Nonfatal injuries are a major cause of morbidity and mortality.
  • Psychosocial outcomes after severe physical injury are increasingly important.
  • No prior population-based studies estimated suicidality incidence post-physical injury.

Purpose of the Study:

  • To estimate the odds ratio (OR) of suicidality among adults with major trauma.
  • To compare suicidality rates between major trauma survivors and a matched general population cohort.

Main Methods:

  • Retrospective study of adults (>18 years) with major traumatic injury (Injury Severity Score > 12).
  • Matched trauma cases (n=2,198) with general population controls (n=10,990) based on age, sex, and injury date.
  • Compared rates of suicidality (suicide or suicide attempt) between cohorts.

Main Results:

  • Major trauma patients had a 4.31 times higher odds of suicidality (OR, 4.31).
  • This increased risk remained significant after adjusting for anxiety/mood disorders and substance abuse (adjusted OR1, 3.65).
  • Further adjustments for residence, comorbidities, and income still showed a significant increase (adjusted OR2, 3.30).

Conclusions:

  • Individuals experiencing major traumatic injuries face a substantially elevated risk of post-injury suicidality.
  • The findings highlight the need for mental health support for trauma survivors.
  • This population-based study provides critical evidence on long-term psychosocial risks of major trauma.