Beijing Hui-Long-Guan Hospital, Peking University, Beijing, China.
Clin Psychol Psychother. 2024 Mar-Apr;31(2):e2990. doi: 10.1002/cpp.2990.
The prevalence of suicide is high among major depressive adolescents. Poor sleep quality has been documented as a significant risk factor for suicide, influencing perceived social support. Enhanced social support acts as a buffer against suicidal ideation and positively impacts resilience, reducing the prevalence of suicidal ideation. This reciprocal relationship between sleep quality, social support and resilience forms the basis for understanding the mechanisms contributing to suicidal ideation in major depressive adolescents.
A total of 585 major depressive adolescents aged 11 to 24 years was conducted to explore these associations. Assessments included the Pittsburgh Sleep Quality Index, Multidimensional Scale of Perceived Social Support, Connor-Davidson Resilience Scale and Beck Scale for Suicide Ideation. Pearson correlation and Model 6 in the SPSS program were employed for chain mediating tests.
Better sleep quality positively predicted decreased suicide ideation (β = 0.207, p < 0.01) and predicted lower perceived social support (β = -0.226, p < 0.01) and resilience (β = -0.355, p < 0.01). Perceived social support positively predicted increased resilience (β = 0.422, p < 0.01) and negatively predicted suicide ideation (β = -0.288, p < 0.01). Resilience negatively predicted suicide ideation (β = -0.187, p < 0.01). Sleep quality indirectly predicted suicide ideation through perceived social support and resilience, with a mediation value of 0.0678 (95% CI [0.0359, 0.1060]), constituting 10.65% of the total effect.
This study establishes that sleep quality indirectly predicts suicide ideation in major depressive adolescents, mediated independently by perceived social support and resilience.
重度抑郁青少年群体的自杀率较高。已有研究表明，睡眠质量较差是导致自杀的重要危险因素之一，会影响感知到的社会支持。增强社会支持可以缓冲自杀意念，并对韧性产生积极影响，从而降低自杀意念的发生率。睡眠质量、社会支持和韧性之间的这种相互关系是理解导致重度抑郁青少年自杀意念的机制的基础。
本研究共纳入 585 名年龄在 11 至 24 岁的重度抑郁青少年，旨在探讨这些相关性。评估包括匹兹堡睡眠质量指数、多维感知社会支持量表、Connor-Davidson 韧性量表和贝克自杀意念量表。采用 SPSS 程序中的 Pearson 相关分析和模型 6 进行连锁中介检验。
更好的睡眠质量与自杀意念的降低呈正相关（β=0.207，p<0.01），与感知到的社会支持（β=-0.226，p<0.01）和韧性（β=-0.355，p<0.01）的降低呈正相关。感知到的社会支持与韧性的增加呈正相关（β=0.422，p<0.01），与自杀意念的降低呈负相关（β=-0.288，p<0.01）。韧性与自杀意念呈负相关（β=-0.187，p<0.01）。睡眠质量通过感知到的社会支持和韧性间接预测自杀意念，中介效应值为 0.0678（95%CI [0.0359，0.1060]），占总效应的 10.65%。
本研究表明，睡眠质量通过感知到的社会支持和韧性间接预测重度抑郁青少年的自杀意念。
