Abstract
BACKGROUND: Men at risk for suicide are a challenging population group to reach with suicide prevention strategies. Gatekeepers hold a pivotal role in the prevention of male suicide, yet effective intervention requires them to have a level of knowledge and strategies to provide support. AIM: This study aimed to examine the efficacy of an online gatekeeper program for gatekeepers in male suicide prevention, assessing knowledge, perceived preparedness, self-efficacy, and psychopathological symptoms of gatekeepers. METHODS: Eighty-four participants were randomized to either the intervention (n = 43) or the waitlist control group (n = 41). The intervention comprised four modules providing knowledge and strategies for addressing men in suicidal crises. Outcomes included depression (PHQ-9), distress (PSS-10), burden (BAS), involvement (IEQ), as well as gatekeeper outcomes and knowledge. RESULTS: Completer analyses revealed significant improvement of depressive symptoms (d = 0.39) and an increase in gatekeeper outcomes (d = 0.58 to d = 0.84) and knowledge (d = 0.62) from baseline to post-assessment. The effects were maintained for 3 months. No significant effects could be found for burden, distress, and involvement. CONCLUSIONS: The findings indicate that a brief gatekeeper program can serve as a valuable resource. Future research should focus on examining the mental health of gatekeepers themselves and its long-term effects on intervention behavior. TRIAL REGISTRATION: German Clinical Trials Register, DRKS00030758, registered on 05.12.2022.