Theories suggest that adolescents exposed to suicide attempts and/or deaths are at higher risk of attempting suicide, themselves. However, research findings have been mixed, with most studies not accounting for psychiatric vulnerability. We examined past psychiatric diagnosis as a moderator of the association between lifetime exposure to suicide attempts and/or deaths and adolescents’ suicide attempts. Adolescents (N = 518; 60% female; 45% White), ages 12–21, reported on prior suicide ideation and attempts, and mood, anxiety, and substance use disorders at baseline. Suicide attempts since baseline and exposure to suicidal behaviors were assessed 4–6 years later. Lifetime exposure to family suicide attempts and/or suicide deaths, but not to suicidal behaviors of peers/friends or others, was associated with a suicide attempt at follow-up among those with prior psychiatric disorders. Psychologically vulnerable adolescents may require additional support after exposure to suicidal behaviors of a family member to reduce their risk of attempting suicide.

理论表明，经历过自杀企图和/或死亡的青少年本身尝试自杀的风险更高。然而，研究结果好坏参半，大多数研究没有考虑到精神脆弱性。我们检查了过去的精神病学诊断，作为终生接触自杀企图和/或死亡与青少年自杀企图之间关联的调节因素。12-21 岁的青少年（N  = 518；60% 为女性；45% 为白人）报告了之前的自杀意念和尝试，以及基线时的情绪、焦虑和药物滥用障碍。4-6 年后评估基线以来的自杀企图和自杀行为暴露情况。终生接触过家庭自杀企图和/或自杀死亡，但不接触同侪/朋友或其他人的自杀行为，与患有精神疾病的患者在随访中的自杀企图有关。心理脆弱的青少年在接触家庭成员的自杀行为后可能需要额外的支持，以降低他们尝试自杀的风险。