Li Yue, Shen Xi, Wang Jin-Liang
Center for Mental Health Education, Faulty of Psychology, Southwest University, Chongqing, 400715, China.
Soc Psychiatry Psychiatr Epidemiol. 2025 Mar;60(3):673-684. doi: 10.1007/s00127-024-02725-y. Epub 2024 Jul 13.
Negative life events are essential proximal factors that may induce suicidal behavior in adolescents, but the mechanisms connecting this link remain to further explored. The present study aimed to investigate the relationship between negative life events (NLEs) and adolescents' suicidal behavior, and the roles of core self-evaluation, depression and gender playing between them.
Using the whole-group sampling approach, 5296 Chinese adolescents (51.5% males, Mean = 12.93) took part in this cross-sectional study in September 2021 and completed a battery of surveys including NLEs, suicidal behavior, CSE (core self-evaluation) and depression. Logistic regression and latent structural equation models were used to test the direct and indirect effects between NLEs and suicide behavior with multi-group path analysis, gender differences in this serial mediating effect were also tested.
After controlling for age and gender, NLEs were directly associated with adolescents' suicidal behavior. CSE and depression played significant serial mediating effects in this relationship. Moreover, significant gender differences were obtained in these serial mediating pathways, with stronger effects in girls.
Integrating the environmental, individual cognitive and emotional factors, our findings would be helpful in understanding the mechanism of these antecedents on adolescents' suicide behavior, which has specific practical significance for preventing and reducing suicidal behavior.
消极生活事件是可能诱发青少年自杀行为的重要近端因素，但连接这一关联的机制仍有待进一步探索。本研究旨在调查消极生活事件（NLEs）与青少年自杀行为之间的关系，以及核心自我评价、抑郁和性别在其中所起的作用。
采用整群抽样方法，5296名中国青少年（51.5%为男性，平均年龄 = 12.93岁）于2021年9月参与了这项横断面研究，并完成了一系列调查，包括消极生活事件、自杀行为、核心自我评价（CSE）和抑郁。使用逻辑回归和潜在结构方程模型，通过多组路径分析来检验消极生活事件与自杀行为之间的直接和间接效应，并检验了这种系列中介效应中的性别差异。
在控制年龄和性别后，消极生活事件与青少年自杀行为直接相关。核心自我评价和抑郁在这种关系中发挥了显著的系列中介作用。此外，在这些系列中介路径中获得了显著的性别差异，女孩的效应更强。
综合环境、个体认知和情感因素，我们的研究结果将有助于理解这些先行因素对青少年自杀行为的作用机制，这对预防和减少自杀行为具有特定的实际意义。
