目的·考察初中生自我中心主义与非自杀性自伤（non-suicidal self-injury，NSSI）的关系，以及抑郁症状在自我中心主义与非自杀性自伤之间的中介作用。方法·数据来源于成都儿童正向成长队列，于2020年6—7月，采用中国青少年自我中心主义量表（Chinese Adolescent Egocentrism Scale，CAES）、非自杀性自伤量表（Deliberate Self-Harm Inventory， DSHI）、流调中心儿童抑郁量表（Center for Epidemiological Studies Depression Scale for Children，CES-DC）进行现场问卷，最终纳入3 014名初中生调查资料。采用SPSS23.0软件对调查据进行录入、整理和分析。采用多重回归分析方法分析初中生自我中心主义与非自杀性自伤的关系和采用偏差校正的非参数百分位Bootstrap法检验抑郁症状的中介效应。结果·自我中心主义与抑郁症状、非自杀性自伤两两之间显著正相关。自我中心主义与抑郁症状显著正相关（r=0.15，P=0.000），抑郁症状与非自杀性自伤显著正相关（r=0.48，P=0.000），自我中心主义与非自杀性自伤显著正相关（r=0.14，P=0.000）。自我中心主义对非自杀性自伤具有显著的预测作用，R²=0.06，自我中心主义中自我自负对非自杀性自伤具有显著的正向预测作用，R²=0.05，而忽视他人对非自杀性自伤具有显著的负向预测作用，R²＝0.01。抑郁症状对非自杀性自伤具有显著的正向预测作用，R²＝0.25。抑郁症状在自我中心主义与非自杀性自伤之间起部分中介作用。自我中心主义对非自杀性自伤的直接效应值为0.20（95％CI 0.06~0.34，P=0.000），自我中心主义通过抑郁症状对非自杀性自伤的间接效应值为0.29（95%CI 0.04~0.10，P=0.000），抑郁症状的中介效应值占总效应值的59.18％。结论·降低初中生自我中心主义中的自我自负水平、提升忽视他人水平将降低NSSI的风险。在初中生非自杀性自伤的预防中，应重点关注具有抑郁症状者。

Objective ·To investigate the relationship between egocentrism and non-suicidal self-injury (NSSI) among junior high school students, with a focus on the mediating role of depression symptoms. Methods ·Data were collected from the Chengdu Positive Youth Development Cohort from June to July 2020, with a sample of 3 014 junior high school students. The Chinese Adolescent Egocentrism Scale (CAES), Deliberate Self-Harm Inventory (DSHI), and Center for Epidemiological Studies Depression Scale for Children (CES-DC) were used for on-site questionnaires. The survey data were entered, organized, and analyzed by using SPSS 23.0 software. Multiple regression analysis was used to analyze the relationship between egocentrism and NSSI in junior middle school students, and the mediating effect of depressive symptoms was examined by deviation-corrected non-parametric percentile Bootstrap method. Results ·Egocentrism was significantly positively correlated with depression symptoms and NSSI. Egocentrism was significantly positively correlated with depression symptoms (r=0.15, P=0.000), depression symptoms were significantly positively correlated with NSSI (r=0.48, P=0.000), and egocentrism was positively correlated with NSSI (r=0.14, P=0.000 ). Egocentrism significantly predicted NSSI (R²=0.06, P=0.000). Within egocentrism, self-conceitedness significantly positively predicted NSSI with a regression coefficient of R²=0.05, while disregarding others significantly negatively predicted NSSI with R²=0.01. Depression symptoms have a significant positive predictive effect on NSSI, R²＝0.25. Depression symptoms are observed to partially mediate the relationship between egocentrism and NSSI. The direct effect value of egocentrism on NSSI was 0.20 (95%CI 0.06?0.34, P=0.000). The indirect effect value of egocentrism on NSSI via depression symptoms was 0.29 (95%CI 0.04?0.10, P=0.000). The mediating effect of depression symptoms accounted for 59.18% of the total effect value. Conclusion ·Lowering levels of self-conceitedness and increasing the tendency to disregard others within junior high school students' egocentrism will mitigate the risk of NSSI. Prevention efforts targeting NSSI among junior high school students should focus on individuals displaying depression symptoms.