The impact of insomnia on suicidal behavior among college students: the mediating role of depression and the moderating role of sense of meaning in life
10.3760/cma.j.cn371468-20241111-00536
- VernacularTitle:大学生失眠对自杀行为的影响：抑郁的中介作用和生命意义感的调节作用
- Author:
Wei LIU
1
;
Ruixin WANG
;
Mengmeng ZHAO
;
Yuxuan ZHENG
;
Ying ZHANG
;
Lina LI
Author Information
1. 华北理工大学大学生心理健康教育与咨询中心，唐山 063210
- Publication Type:Journal Article
- Keywords:
Insomnia;
Depression;
Sense of meaning in life;
Suicidal behavior;
College student
- From:
Chinese Journal of Behavioral Medicine and Brain Science
2025;34(8):727-732
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore the relationship between insomnia, depression, sense of meaning in life and suicidal behavior among college students.Methods:A cross-sectional survey was conducted among 7 260 college students at a university in Hebei Province from September to November 2024. The insomnia severity index (ISI), patient health questionnaire(PHQ-9), meaning in life questionnaire(MLQ), and suicide behavior questionnaire-revised (SBQ-R) were used for assessment. Structural equation modeling test was conducted by Mplus 8.0 to test the mediating effect of depression and the moderating effect of sense of meaning in life.Results:(1) The scores of insomnia (6.00 (4.00, 8.00)), depression (2.50 (0, 2.00)), and suicidal behavior (4.00 (3.00, 4.00)) were significantly and positively correlated with each other ( r=0.51-0.66, all P<0.01). The sense of meaning in life (47.80 (39.00, 58.00)) was negatively correlated with insomnia, depression, and suicidal behavior ( r=-0.04--0.22, all P<0.01). (2) Insomnia could positively predict suicidal behavior among college students ( β= 0.15, P<0.01). (3) Depression played a partial mediating role between insomnia and suicidal behavior, with a mediating effect value of 0.40 (95% CI= 0.37-0.43), accounting for 72.73%(0.40/0.55) of the total effect. Conclusion:Depression plays a partial mediating role between insomnia and suicidal behavior among college students. The sense of meaning in life can moderate the impact of insomnia on depression and suicidal behavior.
