1035名大学生非自杀性自伤行为及相关心理特征分析

Investigation on non--suicidal Self--injury in 1 035 university students

目的了解大学生非自杀性自伤行为的流行状况及相关特征。方法采取整群方便抽样方法，调查一年级大学生自伤行为的发生率等特征，并分析不同性别自伤行为的差异。结果有11．3％既往有过自伤，其中44．4％反复自伤（≥3次）；27．4％在近一年内有过自伤，以女生多见（P〈0．05）。最常见自伤部位是上肢；最常见自伤方式是故意掐拧自己；男生更倾向于采用多种方式（P〈0．05）。最常见的心理动机是缓解不良情绪。结论非自杀性自伤在大学生中发生率较高，具有反复性，损伤程度轻，心理动机复杂。不同性别的学生自伤特点不同。

Objective To investigate the prevalence and other characteristics of non--suicidal self--injury in university students. Methods 1035 freshmen from three universities in Nanjing selected using cluster sampling method completed the survey. Data were analyzed by t--test and Chi--square test for gender differences. Results Lifetime NSSI prevalence rates averaged in 11.3%. Nearly one half of those harmed themselves more than 3 times. Females were more likely than males to have self--injury during the past year （P〈0. 05）. The most common body location self--injurers reported was upper limb. The most common method was scratching or pinching with fingernails or other objects to the point that bleeding occurred or mark appeared on the skin. Males were more likely to use multiple methods. The most common psychological motivation was to alleviate negative emotions. Conclusions NSSI is common in university students but varies significantly by gender.