Brown Lily A, Lynch Kevin G, Gehrman Philip, Mayinja Lindiwe, Farabaugh Danielle, Bredemeier Keith
Department of Psychiatry, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Coatesville VA Medical Center, Coatesville, Pennsylvania, USA.
Suicide Life Threat Behav. 2025 Apr;55(2):e70011. doi: 10.1111/sltb.70011.
Sleep disorder symptoms are associated with suicidal ideation, and wakefulness in the middle of the night is associated with an increased risk for suicide, potentially due to deficits in cognitive control. Little is known about daily-level associations among sleep and suicide or about the role of cognitive control in these associations.
Veterans (n = 32) with past-month suicidal ideation in a residential treatment unit were assessed for 28 days using the suicide visual analogue scale (S-VAS) to assess suicidal urges, a daily sleep diary, and self-reported cognitive control.
Wakefulness in the middle of the night (1-4 a.m.) was associated with the most severe suicidal ideation. Nocturnal wakefulness and sleep quality were each associated with next-day suicidal ideation intensity. Self-reported cognitive control deficits were associated with more intense suicidal ideation. The association between nocturnal wakefulness and suicidal ideation was partially accounted for by self-reported impulsive behavior (7% of variance).
Veterans reported the highest suicidal ideation in the middle of the night. These findings suggest the importance of assessing sleep, suicidal ideation, and cognitive control among veterans and the need to consider nocturnal wakefulness as an indicator of heightened risk for suicide among veterans.
睡眠障碍症状与自杀意念相关，半夜醒来与自杀风险增加有关，这可能是由于认知控制缺陷所致。关于睡眠与自杀的日常关联以及认知控制在这些关联中的作用，我们知之甚少。
对居住治疗单元中过去一个月有自杀意念的退伍军人（n = 32）进行了为期28天的评估，使用自杀视觉模拟量表（S-VAS）评估自杀冲动、每日睡眠日记以及自我报告的认知控制。
半夜（凌晨1点至4点）醒来与最严重的自杀意念相关。夜间觉醒和睡眠质量均与次日自杀意念强度相关。自我报告的认知控制缺陷与更强烈的自杀意念相关。夜间觉醒与自杀意念之间的关联部分可由自我报告的冲动行为解释（方差的7%）。
退伍军人报告在半夜时自杀意念最强。这些发现表明评估退伍军人的睡眠、自杀意念和认知控制的重要性，以及将夜间觉醒视为退伍军人自杀风险升高指标的必要性。
