Suicide prevention strategies: a systematic review

Area of Science:

• Public Health
• Psychiatry
• Epidemiology

Background:

• Suicide caused an estimated 877,000 deaths globally in 2002.
• National suicide prevention plans exist in developed nations, but their effectiveness is seldom evaluated.
• Evaluating specific interventions is crucial for optimizing resource allocation in suicide prevention.

Purpose of the Study:

• To assess the evidence supporting the effectiveness of specific suicide-preventive interventions.
• To provide recommendations for future suicide prevention programs and research.

Main Methods:

• A comprehensive literature search was conducted across MEDLINE, Cochrane Library, and PsychINFO databases (1966-June 2005).
• Studies evaluated interventions including public/professional education, screening, psychiatric treatment, means restriction, and media reporting.
• Data extraction focused on suicidal behavior and intermediate outcomes; a narrative synthesis was performed due to study heterogeneity.

Main Results:

• Physician education on depression recognition and treatment was found to be effective in suicide prevention.
• Restricting access to lethal means was also identified as an effective suicide prevention strategy.
• Public education, screening programs, and media guidelines require further investigation to confirm their effectiveness.

Conclusions:

• Physician education and restricting access to lethal methods are evidence-based strategies for reducing suicide rates.
• Additional research is necessary to establish the efficacy of other suicide prevention interventions.
• Identifying effective components of suicide prevention programs is essential for efficient resource utilization.