“…Gatekeepers may be community members (such as teachers, clergy members, and co-workers), as well as professionals (such as health professionals), who may encounter individuals at risk of suicide through their professional role [ 29 ]. In general, gatekeeper training increases knowledge, skills, self-efficacy, and attitudes toward suicide prevention [ 30 , 31 , 32 , 33 ]; however, these effects tend to decrease over time [ 34 , 35 ]. Furthermore, gatekeeper training is often delivered as a component of a broader multicomponent suicide prevention program, which makes it difficult to ascertain the specific effects of such training on suicidal behavior and ideation [ 36 , 37 , 38 ].…”