中文摘要：

目的分析心理病理症状在童年期虐待和医学生非自杀性自伤行为关联中的中介作用。方法整群选取安徽省某医科院校4007名大一、大二在校医学生为研究对象,采用童年期虐待评定问卷、非自杀性自伤行为条目列表和心理亚健康自评问卷进行童年期虐待经历、自伤行为和心理病理症状等信息调查,使用Pearson相关、线性回归和Sobel检验分析三者间的关联。结果童年期躯体、情感、性虐待、总体虐待评分与心理病理症状评分和自伤行为频率之间均呈显著正相关（P〈0.01）。心理病理症状在童年期各种虐待经历和自伤行为之间起到部分中介效应,Sobel检验显示中介效应具有统计学意义,中介效应占总效应的比例为8.33%～9.96%（男性）和6.06%～10.36%（女性）（P〈0.01）。控制年龄、家庭居住地、经济状况、独生子女状况、父母学历等混杂因素后仍存在中介效应,Sobel检验显示上述中介效应仍具有统计学意义,中介效应占总效应的比例为7.93%～9.96%（男性）和6.10%～10.20%（女性）（P〈0.05）。结论心理病理症状在童年期虐待经历和自伤行为的关联中起到部分中介作用,减缓医学生心理病理症状有助于预防和控制有童年期虐待经历者的自伤行为。

英文摘要：

Objective To explore the mediating effect of psychological symptoms on the relationship between childhood abuse and non-suicidal self-injury（ NSSI）. Methods Freshmen and sophomores as a whole in one medical school were selected as interviewers.Questionnaire survey including childhood abuse assessment, NSSI and psychological symptoms has been conducted. The relevancy among Pearson correlation,linear regression and Sobel examination and analysis has also been used. Results There was a significant positive correlation among physical, emotional, sexual and overall childhood abuse grading, psychological symptom grading and self-injury frequency（ P〈0. 01）.Psychological symptoms played a part in mediating role evaluated by Sobel test in the relationship between these abuses and NSSI, which was statistically significant. Theproportions of mediating effects in total were 8. 33%- 9. 96% among males and 6. 06%-10. 36% among females（ P〈0. 01）. The mediating effects were still marked statistically by Sobel test after adjusting some variables such as age,position of the residence,family condition,and educational background of parents,etc. Sobel test had showed that there was also some statistical significance in the above mediating effect. The proportions were7. 93%- 9. 96% among males and 6. 10%- 10. 20% among females（ P〈0. 05）.Conclusion There is a partial mediating effect of psychological symptoms on the relationship between childhood abuse and NSSI among college students. The alleviating of psychological symptoms may contribute to the prevention and control of NSSI among adolescents who have experienced childhood abuse.