Improving Suicide Prevention Through Evidence-Based Strategies: A Systematic Review

Area of Science:

• Public Health
• Mental Health Research
• Clinical Psychology

Background:

• Suicide remains a significant public health concern globally.
• Identifying effective and scalable prevention strategies is critical.
• Existing research highlights various interventions with mixed evidence.

Purpose of the Study:

• To identify scalable, evidence-based suicide prevention strategies.
• To synthesize findings from randomized controlled trials and epidemiological studies.
• To evaluate the effectiveness of different intervention types.

Main Methods:

• Systematic literature search of PubMed and Google Scholar (September 2005 - December 2019).
• Included 97 randomized controlled trials and epidemiological studies.
• Focused on interventions like lethal means restriction, education, and pharmacotherapy.

Main Results:

• Physician training in depression recognition and treatment prevents suicide.
• Youth education, psychiatric patient outreach, and certain psychotherapies (CBT, DBT) are effective.
• Antidepressants show promise in preventing suicide attempts; ketamine reduces ideation.
• Means restriction, particularly firearm access limitation, is effective but underutilized.
• Gatekeeper training and active screening lack proven effectiveness.

Conclusions:

• Wider implementation of primary care physician training and patient follow-up is recommended.
• Restricting firearm access for at-risk individuals needs broader application.
• Combination approaches show promise, but individual component evaluation is necessary.
• Further research on newer methods like EHR algorithms, internet-based screening, and ketamine is warranted.