Research on bullying victimization has expanded to specific forms of harassment based on discriminatory bias, which involve aggressive behavior targeting an individual's identity characteristics, such as sexual orientation and/or gender expression. Recent studies have documented elevated health risks associated with victimization based on homophobic bias, above and beyond general victimization. The aim of the current study was to test the unique contribution of homophobic victimization on adolescent non-suicidal self-injury (NSSI) and to analyze the buffering role of teachers and classmates support. Participants were 770 adolescents (55.5% females; Mage = 15.35, SD = 1.62) enrolled in Italian public schools in grade nine (N = 483) and 12 (N = 287). All measures were collected during Spring 2016 using self-reported questionnaires. Zero-inflated Poisson regression analyses suggested that homophobic victimization had a unique contribution on NSSI frequency of engagement once initiated, but not on the probability of engaging in NSSI at least once. High classmates support was negatively associated with adolescents’ engagement in NSSI. Furthermore, higher levels of classmates support were associated with a lower NSSI frequency only for youth who reported low levels of homophobic victimization. In contrast, the association between classmates support and NSSI frequency was nonsignificant when youth reported high levels of homophobic victimization. No significant effects were found for teachers support. Overall, our findings underscore the need to address the serious concern of homophobic victimization within schools and the importance of promoting healthy and positive identity development in adolescence.

基于歧视性偏见的关于欺凌受害行为的研究已扩展到特定形式的骚扰，涉及针对个人身份特征（例如性取向和/或性别表达）的侵略行为。最近的研究表明，基于同性恋恐惧症的受害健康风险高于普通受害。本研究的目的是测试同性恋恐惧症对青少年非自杀性自残（NSSI）的独特贡献，并分析教师和同学支持的缓冲作用。参加该计划的770名青少年（女性55.5％；M年龄= 15.35，SD  = 1.62）分别在九年级（N  = 483）和12年级（N = 287）。所有度量均在2016年春季使用自我报告的问卷收集。零膨胀的Poisson回归分析表明，同性恋恐惧症一旦发起，就对NSSI的参与频率有独特的贡献，但对参与NSSI的可能性至少没有影响。同学的高度支持与青少年参与NSSI负相关。此外，只有对同性恋恐惧症受害程度较低的年轻人，较高的同学支持与较低的NSSI频率相关。相反，当青年报告高水平的同性恋恐惧症发作时，同学的支持与NSSI频率之间的关联并不显着。没有发现教师支持的显着效果。全面的，