重庆市大学生非自杀性自伤及其影响因素分析

Non-suicidal self-injury and its related factor among college students in Chongqing

目的 ：探讨重庆市大学生非自杀性自伤的流行病学及其相关危险因素。方法 ：采用分层整群随机抽样方法对重庆市9 808名在校大学生进行问卷调查,了解非自杀性自伤的发生情况及其与一般特征、生活事件量表（life event scale,LES）、外显攻击行为（modified overt aggression scale,MAOS）之间的关系。结果：重庆市大学生非自杀性自伤的发生率为3.7‰,其中性行为（P=0.034）、MAOS（P=0.000）、负性生活事件（P=0.001）等与对照组相比有统计学差异。经过多因素logistic回归分析得出指向身体攻击性（OR=3.12,95%CI=1.420-6.872）、恋人或夫妻之间发生矛盾（OR=4.56,95%CI=2.267-9.180）、学习问题（OR=2.59,95%CI=1.313-5.117）是非自杀性自伤的危险因素。结论 ：非自杀性自伤的独立危险因素为指向身体的攻击性高、恋人或夫妻之间发生矛盾及存在学习问题。

Objective：To investigate the risk factors for college students with non-suicidal self-injury（NSSI）in Chongqing. Methods：Data from 9 808 students were analyzed in a cross-sectional fashion. General characteristic,life event scale（LES）,Modified Overt Aggression Scale（MOAS）between NSSI and non-NSSI were compared. A multiple logistic regression model was used to identify risk factors for NSSI. Results：The incidence rate of NSSI was 3.7‰. There were significant differnces in sex behavior（P=0.034）,LES（P=0.001）,MAOS（P=0.000）between control and students with NSSI. Multiple logistic analysis shaowed that independent risk factors for NSSI were physical aggression（OR=3.12,95%CI=1.420 to 6.872）,confliction between lovers or couples（OR=4.56,95%CI=2.267 to9.180）,study problem（OR=2.59,95%CI=1.313 to 5.117）. Conclusion：Physical aggression,confliction between lovers or couples,study problem are the independent risk factors for students with NSSI.