标题：Stressful life events, insomnia and suicidality in a large sample of Chinese adolescents
作者：Liu, Bao-Peng; Wang, Xin-Ting; Liu, Zhen-Zhen; Wang, Ze-Ying; Liu, Xianchen; Jia, Cun-Xian
作者机构：[Liu, Bao-Peng; Wang, Xin-Ting; Liu, Zhen-Zhen; Wang, Ze-Ying; Liu, Xianchen; Jia, Cun-Xian] Shandong Univ, Dept Epidemiol, Sch Publ Hlth, Jinan 25001 更多
通讯作者：Liu, XC;Jia, CX;Liu, XC;Jia, CX;Liu, XC;Liu, XC
通讯作者地址：[Liu, XC; Jia, CX]Shandong Univ, Dept Epidemiol, Sch Publ Hlth, Jinan 250012, Shandong, Peoples R China;[Liu, XC; Jia, CX]Shandong Univ, Ctr Suicide P 更多
来源：JOURNAL OF AFFECTIVE DISORDERS
关键词：Adolescents; Stressful life events; Insomnia; Suicidality; Mediation; effect
摘要：Aims: This study aimed to examine the associations between stressful life events, insomnia, and suicidality including suicidal ideation (SI), suicide plan (SP) and suicide attempt (SA) in a large sample of Chinese adolescents.; Methods: A total of 11,831 adolescents who participated in the baseline survey of Shandong Adolescent Behavior and Health Cohort were included for the analysis. Participants were sampled from 8 middle/high schools in 3 counties of Shandong, China. Participants completed a structured behavior and health questionnaire, including suicidality, demographics, depression/anxiety, stressful life events (SLEs), and insomnia in November-December 2015. A series of logistic regression models and mediation analyses were performed to examine the associations between SLEs, insomnia and suicidality.; Results: The prevalence rates of overall suicidality, SI, SP and SA in the last year were 13.1%, 12.5%, 3.3%, and 1.5%, respectively. SLEs were significantly associated with overall suicidality, SI, and SP. Insomnia was an independent risk factor of suicidality and a mediator of the association between SLEs and suicidality. The total effect of SLEs on overall suicidality was 0.597 (95%CI: 0.534-0.661), including 0.457 (95%CI: 0.391-0.523) for direct effect and 0.158 (95%CI: 0.138-0.178) for indirect effect. Insomnia also mediated the associations of SLEs with SI, SP and SA, respectively.; Limitations: Causal relationship could not be concluded because this study is cross-sectional.; Conclusions: Stressful life events and insomnia are directly associated with suicidality in adolescents. The association between SLEs and suicidality is partially mediated by insomnia.