The Progression of Lethality Across Multiple Suicide Attempts: A Systematic Review

Summary

This summary is machine-generated.

This review found no evidence that repeat suicide attempts increase in lethality. However, the limited and varied evidence base requires cautious interpretation of this finding regarding suicidal behavior.

Area Of Science

  • Public Health
  • Psychiatry
  • Epidemiology

Background

  • Suicide is a significant global public health issue.
  • Understanding the trajectory of suicidal behavior, particularly among individuals with multiple attempts, requires further investigation.
  • Risk factors for suicidal behavior are increasingly understood, but specific questions remain under-explored.

Purpose Of The Study

  • To systematically review existing literature on the longitudinal course of suicidal behavior.
  • To investigate whether the lethality of suicide attempts increases across multiple episodes.
  • To synthesize evidence on the lethality of repeat suicide attempts.

Main Methods

  • Systematic review adhering to PRISMA 2020 guidelines.
  • Comprehensive literature search across MEDLINE, Embase, and PsycINFO databases (inception to August 2023).
  • Inclusion of longitudinal studies reporting on multiple suicide attempts and their lethality, using narrative synthesis for data summarization.

Main Results

  • Eleven studies were included after screening 828 unique abstracts.
  • Heterogeneity in suicide attempt assessment and lethality definitions was noted, often relying on indirect inference from methods used.
  • Individuals with repeat attempts may exhibit a tendency to use the same method.

Conclusions

  • No evidence was found to support an increase in lethality across repeat suicide attempts.
  • The existing evidence base is characterized by scarcity, heterogeneity, and methodological limitations.
  • Findings should be interpreted with caution due to the limitations of the current research.

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