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Journal Article

Citation

He W, Wen J, Wang Y, Wu J, Wen S, Chen H, Qiu J, Song Y, Liang L, Huang G. Chinese Journal of Behavioral Medicine and Brain Science 2022; (12): 359-365.

Copyright

(Copyright © 2022)

DOI

10.3760/cma.j.cn371468-20211106-00633

PMID

unavailable

Abstract

OBJECTIVE:To explore the mediating role of insomnia between childhood trauma and suicide risk in middle school students.

METHODS:Childhood trauma questionnaire(CTQ), insomnia severity index(ISI) and suicidal behaviors questionnaire-revised(SBQ-R) were used to investigate 3 442 middle school students.According to the total score of the SBQ-R, those who scored less than or equal to 6 were divided into low suicide risk group, and those who scored more than or equal to 7 were divided into high suicide risk group.In this study, there were 2 168 students in the low suicide risk group and 1 274 students in the high suicide risk group.SPSSAU 21.0 online statistical software was used for common method deviation test, descriptive statistics, variance analysis and correlation analysis, and structural equation model was constructed, and Bootstrap method was used for mediation effect test.

RESULTS:(1) There were statistically significant differences between the high suicide risk group and the low suicide risk group in terms of grade and gender( χ2=11.144, 83.737, both P<0.05), and there were statistically significant differences in the types of childhood trauma and the severity of insomnia( χ2=292.211, 333.998, both P<0.05). (2) The total score of childhood trauma in the high suicide risk group (43.92±10.50) was higher than that in the low suicide risk group (37.74±6.93) ( F=351.78, P<0.01), and the score of insomnia in the high suicide risk group (10.66±5.54) was higher than that in the low suicide risk group (7.04±4.76) ( F=379.25, P<0.01). (3)The total score of childhood trauma was positively correlated with the score of suicide risk ( r=0.415, P<0.01), and the total score of childhood trauma was positively correlated with the score of insomnia ( r=0.306, P<0.01), and the score of insomnia was significantly positively correlated with the score of suicide risk ( r=0.399, P<0.01). After controlling for demographic data, anxiety and depression, the correlation was still significant ( P<0.01). (4) Path analysis and mediation test showed that childhood trauma had a positive effect on insomnia ( β=0.30, P<0.01), insomnia had a positive effect on suicide risk ( β=0.29, P<0.01), and childhood trauma had a positive effect on suicide risk ( β=0.33, P<0.01). The mediating effect of insomnia accounted for 21.21% of the total effect.After controlling for demographic data, anxiety and depression, the mediating effect accounted for 10.66% of the total effect.

CONCLUSION:Childhood trauma and insomnia have a significant impact on the suicide risk among middle school students.Insomnia plays a partial mediating role between childhood trauma and middle school students' suicide risk.Timely management of the sleep disturbances of traumatized individuals can reduce the suicide risk among middle school students.


Language: zh

Keywords

Childhood trauma; Suicide risk; Insomnia; Mediating effect; Middle school students

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