Longitudinal Associations of Stressful Life Events with Non-suicidal Self-Injury among Chinese Adolescents: The Mediating Effect of Depressive Symptoms

Author:

Wan Li-Peng1ORCID,Yang Xiao-Fan1,Liu Zhen-Zhen2,Liu Bao-Peng1,Zhang Ying-Ying1,Liu Cai-Rui1,Liu Xianchen3,Jia Cun-Xian1ORCID,Wang Xin-Ting1ORCID

Affiliation:

1. Department of Epidemiology, School of Public Health, Cheeloo College of Medicine, Shandong University and Shandong University Center for Suicide Prevention Research, Jinan, Shandong, China

2. School of Psychology, Northeast Normal University, Changchun, Jilin, China

3. Center for Public Health Initiatives, University of Pennsylvania, Philadelphia, PA, USA

Abstract

Objective. Little is known about the mechanism between stressful life events and non-suicidal self-injury (NSSI) in Chinese adolescents. This study was to investigate the mediating effect of depressive symptoms on the association between stressful life events and NSSI among Chinese adolescents. Methods. This study included a total of 7072 adolescents who participated in the one-year follow-up of Shandong Adolescent Behavior and Health Cohort. A self-administrated questionnaire was used to evaluate stressful life events, depressive symptoms, NSSI, and other variables in November-December 2015. One year later, a follow-up investigation was performed to evaluate participants’ depressive symptoms and NSSI. Logistic regression and mediation analysis were used to examine the relationship between stressful life events, depressive symptoms, and NSSI. Results. Of the sample, half were females and mean age was 14.58 ± 1.46 . At baseline and one-year follow-up, the rate of NSSI was 19.4% and 8.8%, respectively. Multivariate logistic regression analysis showed that stressful life events and depressive symptoms were positively associated with NSSI. Mediation analysis showed that depressive symptoms accounted for 17.70% of the relation between high stressful life events and NSSI at one-year follow-up after controlling for covariates. Limitation. All variables were collected based on self-report. Conclusions. The relationship between stressful life events and NSSI appears to be partially mediated by depressive symptoms. It is necessary to evaluate and intervene against depressive symptoms related to life stress for the prevention of NSSI.

Funder

National Natural Science Foundation of China

Publisher

Hindawi Limited

Subject

Psychiatry and Mental health,Clinical Psychology

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