Abstract

Suicide is the second leading cause of death for young adults in the United States. One of the many risk factors for suicide includes exposure to early life trauma. The present study examined whether rumination and impulsivity play a role in the relationship between early life trauma and increased risk for suicidal behavior (i.e., suicide ideation and suicide attempts) among 426 young adults. Early life trauma was associated with brooding, reflective rumination, and impulsivity in the form of negative urgency. Current or recent suicide ideators self-reported greater early life trauma, ruminative thinking, and impulsivity than non-ideators and non-attempters. Further, a multinomial logistic regression found that early life trauma, reflection, lack of premeditation, and lack of perseverance were associated with higher odds of reporting suicide ideation in the previous 6 months. We also found indirect relationships between early life trauma and suicide ideation through brooding or reflection and lack of perseverance in serial mediation analyses. These findings suggest that early life trauma may increase risk of suicide ideation to the degree that it leads to ruminative thinking and lack of follow-through with difficult tasks. How early life trauma might increase risk for ruminative thinking, impulsivity, and subsequent suicidal behavior is discussed.

摘要

自杀是美国年轻人的第二大死因。自杀的众多危险因素之一包括早年经历过创伤。本研究调查了 426 名年轻人的反刍和冲动是否在早期生活创伤与自杀行为（即自杀意念和自杀企图）风险增加之间的关系中发挥作用。早年生活创伤与沉思、反省和消极紧迫感的冲动有关。目前或最近的自杀意念者自我报告说，与非意念者和非企图者相比，早年生活创伤、沉思思维和冲动性更大。此外，多项逻辑回归发现早年的创伤、反思、缺乏预谋、和缺乏毅力与前 6 个月报告自杀意念的几率较高有关。我们还通过沉思或反思以及连续调解分析中缺乏毅力发现早年生活创伤与自杀意念之间的间接关系。这些发现表明，早年生活创伤可能会增加自杀意念的风险，以至于导致沉思和缺乏对困难任务的跟进。讨论了早年生活创伤如何增加反刍思维、冲动和随后的自杀行为的风险。这些发现表明，早年生活创伤可能会增加自杀意念的风险，以至于导致沉思和缺乏对困难任务的跟进。讨论了早年生活创伤如何增加反刍思维、冲动和随后的自杀行为的风险。这些发现表明，早年生活创伤可能会增加自杀意念的风险，以至于导致沉思和缺乏对困难任务的跟进。讨论了早年生活创伤如何增加反刍思维、冲动和随后的自杀行为的风险。