Institute for Population and Development Studies, School of Public Policy and Administration, Xi'an Jiaotong University, Xi'an 710049, China.
School of Public Health and Management, Binzhou Medical University, Yantai 246003, China.
Int J Environ Res Public Health. 2021 Mar 24;18(7):3347. doi: 10.3390/ijerph18073347.
Repetitive nonsuicidal self-injury (R-NSSI) is an extreme manifestation of nonsuicidal self-injury (NSSI) behavior that causes bodily harm and emotional and personality disorders. It is a growing concern, especially among adolescents; therefore, this study aims to provide empirical support for effective interventions on R-NSSI behavior among adolescents in China. We used data of about 1180 students from a survey conducted in seven middle schools in Xi'an, China, and applied multiple logistic regression to analyze NSSI and R-NSSI among male and female students, including their influencing factors. We found no significant difference between male and female students' R-NSSI; however, regarding influencing factors, male students had more violent experiences and less social support than female students. Parental and familial factors played the most prominent role in social support. Social support was found to be a main-effect mechanism in the effect of violent experiences on R-NSSI among male students, whereas the mechanism had both a main effect and a certain buffer effect among female students. R-NSSI was found to be more prevalent among younger children, children with siblings, and those with romantic relationship experiences. We also found that healthy adolescent development involves the participation of families and schools. Health education should be conducted according to the students' sex and characteristics.
重复性非自杀性自我伤害（R-NSSI）是一种极端的非自杀性自我伤害（NSSI）行为，会导致身体伤害和情绪及人格障碍。它是一个日益严重的问题，尤其是在青少年中；因此，本研究旨在为中国青少年 R-NSSI 行为的有效干预提供实证支持。我们使用了来自中国西安七所中学调查的数据，约有 1180 名学生，应用多变量逻辑回归分析了男女生的 NSSI 和 R-NSSI，包括其影响因素。我们发现男女生的 R-NSSI 没有显著差异；但是，在影响因素方面，男生比女生有更多的暴力经历和更少的社会支持。父母和家庭因素在社会支持方面发挥了最突出的作用。社会支持被发现是男生中暴力经历对 R-NSSI 影响的一个主要效应机制，而在女生中，该机制既有主要效应，也有一定的缓冲效应。R-NSSI 在年龄较小的儿童、有兄弟姐妹的儿童和有恋爱经历的儿童中更为普遍。我们还发现，青少年的健康发展涉及家庭和学校的参与。应该根据学生的性别和特点进行健康教育。
