TY  - JOUR
PY  - 2023//
TI  - Life stress and suicidality mediated by insomnia and depressive symptoms in adolescents: a three-wave longitudinal study
JO  - Sleep
A1  - Liu, Xianchen
A1  - Yang, Yanyun
A1  - Liu, Zhen-Zhen
A1  - Jia, Cun-xian
SP  - ePub
EP  - ePub
VL  - ePub
IS  - ePub
N2  - STUDY OBJECTIVES: Little empirical work has investigated the associations between life stress (LS), insomnia, depression, and suicidality in multi-wave longitudinal studies. With 3 waves of data collection 1 year apart, this longitudinal study with a large sample of adolescents examined the predicting effects of LS on suicidality 1 year later and 2 years later and the mediating roles of insomnia and depression in the LS-suicidality link. <br><br>METHODS: A total of 6,995 adolescents (mean age=14.86 years, 51.4% male) participated in a 3-wave longitudinal study of behavior and health in Shandong, China. A self-administered structured questionnaire and standardized scales were used to assess suicidality (including suicidal thought (ST), suicide plan (SP), and suicide attempt (SA)), LS, insomnia, and depression in 2015 (T1), 1 year later (T2), and 2 years later (T3). Mediation effects were examined with path models. <br><br>RESULTS: The overall prevalence rates of past-year suicidality were 13.4% at T1, 10.0% at T2, and 9.5% at T3, respectively. The prevalence rates of suicidality across T1-T3 significantly increased with elevated levels of baseline LS, insomnia, and depression (p<.001). Path models indicated that the relationship between baseline LS and suicidal ideation (ST/SP) 2 years later was significantly mediated by both insomnia and depression. Depression was also a significant mediator between life stress and SA. <br><br>CONCLUSION: Life stress is a significant predictor of suicidality 1-2 years later in adolescents. Depression mediates the association between life stress and suicidal ideation and attempt while insomnia appears to be a mediator for suicidal ideation rather than attempt.<p />  <p>Language: en</p>
LA  - en
SN  - 0161-8105
UR  - http://dx.doi.org/10.1093/sleep/zsad121
ID  - ref1
ER  -