Gómez-Tabares Anyerson Stiths, Arango-Tobón Olber Eduardo, Núñez César, Zapata Lesmes Gastón Adolfo
Faculty of Social Sciences, Health and Wellness, Universidad Católica Luis Amigó, Medellín, Colombia.
Psychology Program, Faculty of Social and Human Sciences, Universidad de Medellín, Medellín, Colombia.
Clin Psychol Eur. 2025 May 28;7(2):e11331. doi: 10.32872/cpe.11331. eCollection 2025 May.
Previous studies have documented that depression and hopelessness predict higher suicide risk in young people. However, the psychological mechanisms that may mediate these associations are unknown. The aim of this study was to analyze the effects of depression, hopelessness, and impulsivity on suicidal attempts and risk, and to explore the mediating role of impulsivity in these associations.
A total of 1,645 young people participated with a mean age of 21.604 years ( = 3.22) (68.8% female and 31.2% male). A sociodemographic form was applied to explore suicide attempts in the last year (SA), the Plutchik Suicide Risk (SR), Beck Hopelessness (BHS), Barratt Impulsivity (BIS), and Beck Depression Inventory (BDI) scales. Direct correlations were found among BHS, BDI, BIS, SA, and SR.
The binary regression model showed that the variables BHS, BDI, and BIS explained between 33% and 49% of the variance of suicidal risk and 16% of the variance of suicide attempts. Structural equation analysis showed that impulsivity mediated the associations between depression, hopelessness, and suicidal risk, on the one hand, and mediated the associations between depression and suicide attempt, on the other hand, whose total direct and indirect effects were statistically significant.
The findings emphasize the importance of impulsivity as the mechanism influencing interactions between mood indicators and suicidal behavior in young populations.
先前的研究表明，抑郁和绝望预示着年轻人更高的自杀风险。然而，可能介导这些关联的心理机制尚不清楚。本研究的目的是分析抑郁、绝望和冲动对自杀未遂及风险的影响，并探讨冲动在这些关联中的中介作用。
共有1645名年轻人参与研究，平均年龄为21.604岁（标准差=3.22）（女性占68.8%，男性占31.2%）。采用社会人口学表格来探究过去一年中的自杀未遂情况（SA）、普卢契克自杀风险量表（SR）、贝克绝望量表（BHS）、巴拉特冲动性量表（BIS）和贝克抑郁量表（BDI）。发现BHS、BDI、BIS、SA和SR之间存在直接相关性。
二元回归模型显示，BHS、BDI和BIS变量解释了自杀风险方差的33%至49%以及自杀未遂方差的16%。结构方程分析表明，冲动一方面介导了抑郁、绝望与自杀风险之间的关联，另一方面介导了抑郁与自杀未遂之间的关联，其总的直接和间接效应具有统计学意义。
研究结果强调了冲动作为影响年轻人群情绪指标与自杀行为之间相互作用机制的重要性。
