Reducing suicidal ideation through evidence-based treatment for posttraumatic stress disorder

Area of Science:

• Psychiatry
• Public Health
• Military Medicine

Background:

• Suicide is a critical public health issue affecting both military and civilian populations.
• Veterans face elevated suicide risks, particularly those with mental health conditions like Posttraumatic Stress Disorder (PTSD).
• Suicidal ideation (SI) is a primary predictor of suicide completion.

Purpose of the Study:

• To examine the impact of Prolonged Exposure (PE) therapy on suicidal ideation (SI) among veterans seeking treatment.
• To investigate the relationship between changes in PTSD symptoms and SI over the course of treatment.

Main Methods:

• A multi-site study involving 289 treatment-seeking veterans from Veterans Health Administration (VA) medical centers.
• Participants received Prolonged Exposure (PE), an evidence-based treatment (EBT) for PTSD.
• Self-report measures assessed SI and PTSD symptoms throughout routine clinical care.

Main Results:

• Both PTSD and SI symptoms significantly decreased during PE therapy (effect sizes 1.47 and 0.27, respectively).
• Time-lagged analyses revealed that reductions in PTSD symptoms predicted subsequent decreases in SI.
• The association between PTSD symptoms and SI was consistent across all assessment points.

Conclusions:

• Evidence-based treatment (EBT) for PTSD, such as PE therapy, can effectively reduce suicidal ideation (SI) in some veterans.
• These findings underscore the importance of integrating EBT for specific disorders into broader suicide prevention strategies within the VA.
• Facilitating referrals to EBTs is crucial for addressing suicide risk and improving mental health outcomes in veteran populations.