Arch Suicide Res. 2022 Jul-Sep;26(3):1198-1218. doi: 10.1080/13811118.2020.1868365. Epub 2021 Jan 19.
Suicide exposure is associated with an increased risk for suicide. There is limited research on the mechanisms that increase this risk. This study aims to: (1) compare suicide exposure and associated variables in veteran, active duty, and civilian participants, (2) examine the extent to which fearlessness about death and suicide risk factors differ as a function of group membership and suicide exposure, and (3) determine the degree to which relationship to the decedent, perceived closeness, and reported impact of the death are associated with fearlessness about death and suicide-related outcomes. 1,533 participants were included, of whom 48% of active duty service members, 65% of veterans, and 58% of civilians reported knowing someone who died by suicide. A series of regressions were conducted. There were group differences by military service on the suicide exposure variables. Furthermore, there were significant main effects for military service group and suicide exposure on the outcome variables. In general, civilians reported greater suicide risk and active duty service members reported greater fearlessness about death. Fearlessness about death mediated the associations between perceived closeness and a history of suicide attempts. The loss of a military colleague to suicide was found to be unique and distinguishable from other important relationships. Results suggest the need to consider suicide exposure and closeness as salient variables associated with fearlessness about death and suicide risk factors. Inquiring about suicide exposure, closeness to the decedent, fearlessness about death, and beyond familial losses to suicide may indicate important avenues of intervention.
自杀暴露与自杀风险增加有关。关于增加这种风险的机制的研究有限。本研究旨在:(1) 比较退伍军人、现役军人和平民参与者中的自杀暴露和相关变量;(2) 研究无畏死亡和自杀风险因素的程度如何因群体成员和自杀暴露而异;(3) 确定与死者的关系、感知亲密程度以及死亡的报告影响与无畏死亡和与自杀相关的结果之间的关联程度。共纳入 1533 名参与者,其中 48%的现役军人、65%的退伍军人和 58%的平民报告认识有人自杀身亡。进行了一系列回归分析。在自杀暴露变量上,兵役存在群体差异。此外,兵役团体和自杀暴露对结果变量有显著的主要影响。一般来说,平民报告的自杀风险更大,现役军人报告的无畏死亡程度更大。无畏死亡中介了感知亲密程度与自杀未遂史之间的关联。发现失去一名军事同事自杀是独特的,可以与其他重要关系区分开来。结果表明,需要将自杀暴露和亲密程度视为与无畏死亡和自杀风险因素相关的重要变量。询问自杀暴露、与死者的亲密程度、无畏死亡以及自杀造成的非家庭损失等情况,可能表明存在重要的干预途径。