大学生自杀行为影响因素的分类决策树分析

doi:10.16187/j.cnki.issn1001-4918.2024.03.13

摘要/Abstract

摘要： 为了识别大学生自杀行为的风险和保护因素。对在校大学生实施感恩问卷、自我控制双系统量表、自杀问卷及人口学信息调查,获得有效数据11288份,进行分类决策树分析。结果显示:大学生近一年内自杀意念发生率17.1%,近半年内自杀行为发生率3.8%。分类决策树分析发现,自杀意念为根节点,感恩、冲动、控制、家庭阶层、是否独生均为重要的子节点(AUC=0.959)。结论:自杀意念是大学生自杀行为最重要的近端风险因素,冲动为中端风险因素,感恩特质和适度控制分别为远端保护因素;低社会家庭阶层、中高阶层家庭的非独生子女大学生由自杀意念转变自杀行为的风险较高。

关键词: 大学生, 自杀行为, 感恩, 自我控制, 分类决策树

Abstract: To identify the risk and protective factors of suicide behavior in college students. 11,288 valid college students were investigated by using a gratitude, self-control dual system scale, suicide tests, and some basic demographic information. The classifiation tree method were used to identify the risk factors of suicide attempts. The results showed that: (1) The incidence of suicidal ideation was 17.1% within one year, and the incidence of suicidal behavior was 3.8% within six months; (2) The results of classified decision tree analysis showed that suicide ideation was the root node, and gratitude, impulsivity, control, family class, and only-child or not were all important child nodes (AUC=0.959). The main conclusions are as follows: (1) Suicidal ideation is the most important proximal risk factor of suicide behavior in college students, impulsivity is the medium risk factor, gratitude and moderate control are the distal protective factors, respectively; (2) The risk of transition from suicidal ideation to suicidal behavior is higher among college students from low social class, and among non-only-child college students from middle and high social class families.

Key words: college students, suicide behavior, gratitude, self-control, classification decision tree

中图分类号:

B844

薛朝霞, 任子媛, 荆雷, 李慧. 大学生自杀行为影响因素的分类决策树分析[J]. 心理发展与教育, 2024, 40(3): 421-430.

XUE Zhaoxia, REN Ziyuan, JING Lei, LI Hui. Classification Decision Tree Analysis on Influencing Factors of Suicidal Behavior in College Students[J]. Psychological Development and Education, 2024, 40(3): 421-430.

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