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BackgroundNon-suicidal self-injury （NSSI） behavior has become a major public health concern and can have significant implications for the physical and mental health of adolescents. Peer victimization is a risk factor for adolesents to have NSSI behavior， so exploring the relationship and underlying mechanism between peer victimization and NSSI functions will provide a promising strategy for the prevention and intervention of NSSI behavior.ObjectiveTo investigate the relationship between peer victimization and NSSI functions in adolescents with unipolar and bipolar depression， so as to provide references for the intervention of NSSI behavior in adolescent patients with unipolar and bipolar depression.MethodsUsing multi-stage stratified sampling， 940 adolescents with unipolar and bipolar depression who met the Diagnostic and Statistical Manual of Mental Disorders， fifth edition （DSM-5） criteria for bipolar depressive episodes or depressive disorders were selected from 14 psychiatric hospitals in China. All participations were assessed using Chinese version of the Functional Assessment of Self-Mutilation （C-FASM）， Multidimensional Peer-Victimization Scale （MPVS）， UCLA Loneliness Scale （UCLA-LS） and Patient Health Questionnaire-9 item （PHQ-9）. Pearson correlation coefficient was to assess the correlation among above scales， and the model fit and path coefficients for mediation were analyzed with model 4 in Process 4.0 for SPSS.ResultsA total of 698 （74.26%） adolescents with unipolar and bipolar depression completed the questionnaire survey. NSSI behavior was detected in 374 patients （53.58%）. Among adolescents with unipolar and bipolar depression and NSSI behavior， MPVS total score was positively correlated with the scores of NSSI emotion regulation function， attention-seeking function and social avoidance function in C-FASM （r=0.104， 0.130， 0.266， P

Background Non-suicidal self-injury (NSSI) behavior has become a major public health concern and can have significant implications for the physical and mental health of adolescents. Peer victimization is a risk factor for adolesents to have NSSI behavior, so exploring the relationship and underlying mechanism between peer victimization and NSSI functions will provide a promising strategy for the prevention and intervention of NSSI behavior. Objective To investigate the relationship between peer victimization and NSSI functions in adolescents with unipolar and bipolar depression, so as to provide references for the intervention of NSSI behavior in adolescent patients with unipolar and bipolar depression. Methods Using multi-stage stratified sampling, 940 adolescents with unipolar and bipolar depression who met the Diagnostic and Statistical Manual of Mental Disorders, fifth edition (DSM-5) criteria for bipolar depressive episodes or depressive disorders were selected from 14 psychiatric hospitals in China. All participations were assessed using Chinese version of the Functional Assessment of Self-Mutilation (C-FASM), Multidimensional Peer-Victimization Scale (MPVS), UCLA Loneliness Scale (UCLA-LS) and Patient Health Questionnaire-9 item (PHQ-9). Pearson correlation coefficient was to assess the correlation among above scales, and the model fit and path coefficients for mediation were analyzed with model 4 in Process 4. 0 for SPSS. Results A total of 698 (74. 26%) adolescents with unipolar and bipolar depression completed the questionnaire survey. NSSI behavior was detected in 374 patients (53. 58%). Among adolescents with unipolar and bipolar depression and NSSI behavior, MPVS total score was positively correlated with the scores of NSSI emotion regulation function, attention-seeking function and social avoidance function in C-FASM (r=0. 104, 0. 130, 0. 266, P<0. 05 or 0. 01), UCLA-LS score also yielded a positive correlation with the scores of NSSI emotion regulation function, attention-seeking function and social avoidance function in C-FASM (r=0. 321, 0. 112, 0. 246, P<0. 05 or 0. 01), and UCLA-LS score was positively correlated with MPVS total score (r=0. 241, P<0. 01). Loneliness demonstrated a complete mediating role in the relationship between peer victimization and emotion regulation function, with an indirect effect value of 0. 033 (95% CI: 0. 019~0. 050) and an effect size of 73. 33%. A partial mediating effect of loneliness was also observed for the relationship between peer victimization and social avoidance function, with an indirect effect value of 0. 016 (95% CI: 0. 007~0. 025) and an effect size of 17. 98%. Conclusion Loneliness may act as a mediator in the relationship between the peer victimization and the NISS emotion regulation and social avoidance functions in adolescents with unipolar and bipolar depression and NSSI behaviors. [ABSTRACT FROM AUTHOR]

Objective: To examine the childhood psychological maltreatment and peer victimization among college studentsr, and to explore the association with depressive symptoms and suicidal ideation.Methods:Totally2995 college students from 6 universities from Guangxi, Sichuan, Henan, Guizhou and Chongqing were enrolled The Child Psychological Maltreatment Scale (CPMS）, Questionnaire of Victim from Olweus Bully/Victim Questionnaire (OB VQ), Center for Epidemiological Survey-Depression Scale (CES-D) and two items on suicidal ideation/attempt of Youth Self-Report (YSR) were used to measure psychological maltreatment, peer victimization, depressive symptoms, and suicidal ideation, Results: Totally 14.8% of the college students reported both childhood psychological maltreatment and peer victimization. Regression analysis revealed that those who experienced psychological maltreatment had a 2.92-fold increased risk of peer victimization relative to those who did not experience psychological maltreatment. Compared to those who did not experience interpersonal victimization, those who experienced psychological maltreatment only, experienced peer victimization only, and experienced both psychological maltreatment and peer victimization had increased risks of depressive symptoms (OR=3.59, 2.32, 9.43) and suicidal ideation (OR=4.42, 1.92, 9.98）.Conclusion: There is co-occurrence between childhood psychological maltreatment and peer victimization, and they are risk factors for depressive symptoms and suicidal ideation in college students. [ABSTRACT FROM AUTHOR]

Bullying is a major problem in schools. Many studies conducted in the U.S. and Europe have indicated relationships between parenting behaviors and bullying and peer victimization. However, only a few studies in Japan have investigated these relationships. Therefore, the study examined associations between parenting behaviors and experiences of bullying and victimization in all elementary and junior-high schools students in a suburban Japanese city. Parents assessed their parenting behaviors and the degree of their children's experience of bullying behaviors or victimization in the last year using parent-reported measures. Multinomial logistic regression analysis indicated that parental involvement and monitoring was associated with experiences of victimization at school. Furthermore, negative parenting behaviors, especially rigid discipline, was related to all experiences of bullying, including the bully, the victim, and the bully-victim. These findings suggest that the improvement of parenting behaviors could prevent children and adolescents from bullying other students or being victimized at schools. [ABSTRACT FROM AUTHOR]