Liu Yanzheng, Zhang Jie
J Nerv Ment Dis. 2018 Mar;206(3):187-194. doi: 10.1097/NMD.0000000000000727.
This study aims to explore the impact of negative life events (NLEs) on attempted suicide in a Chinese cultural setting. The sample comprised 791 suicide attempters and an equal number of controls matched on age, sex, and location from selected rural counties in China. Conditional logistic regression model was used to examine the association between NLEs and suicide risk. The impact of NLEs on attempted suicide was further examined using regression-based method to explore its mediation effect. The types of NLEs that were most likely to precede a suicide attempt in rural sample included the events in marriage/love, family/home, and friend/relationship. Rural women were more likely to experience more interpersonal conflicts than rural men. Approximately 75.6% of suicide attempters had experienced at least one NLE, and NLEs were strongly associated with attempted suicide. Total effect (0.676), direct effect (0.501), and the total indirect effect (0.301) of NLEs on suicide attempts were significantly mediated by hopelessness and depression. NLEs play a crucial role in predicting suicidal attempt in rural China, and they are mediated by depression and hopelessness.
本研究旨在探讨在中国文化背景下负性生活事件(NLEs)对自杀未遂的影响。样本包括791名自杀未遂者以及从中国部分农村县选取的在年龄、性别和地点上匹配的同等数量的对照者。采用条件逻辑回归模型来检验NLEs与自杀风险之间的关联。使用基于回归的方法进一步检验NLEs对自杀未遂的影响,以探究其中介效应。在农村样本中,最有可能先于自杀未遂发生的NLEs类型包括婚姻/恋爱、家庭/住所和朋友/人际关系方面的事件。农村女性比农村男性更有可能经历更多的人际冲突。约75.6%的自杀未遂者曾经历过至少一次NLEs,且NLEs与自杀未遂密切相关。NLEs对自杀未遂的总效应(0.676)、直接效应(0.501)和总间接效应(0.301)均通过绝望感和抑郁显著介导。NLEs在中国农村自杀未遂预测中起着关键作用,且由抑郁和绝望感介导。