Sheehan Connor M, Rogers Richard G, Boardman Jason D
University of Texas at Austin.
University of Colorado Boulder.
J Drug Issues. 2015 Jul;45(3):249-262. doi: 10.1177/0022042615580988. Epub 2015 Apr 29.
The link between substance use and suicide is well established. However, little research analyzes how substance use is related to the method of suicide. This paper analyzes how specific drugs are associated with method of suicide, a critical topic because drug use bears on the etiology of suicide and may lead to policies aimed at deterring suicide. We use the COVDRS and logistic regression to examine postmortem presence of drugs among 3,389 hanging and firearm suicides in Colorado from 2004-2009. Net of demographic controls, we find that opiates are positively associated with firearms (OR: 1.92, 95% L: 1.27, 95% U: 2.86]) while antidepressants are positively associated with hanging (OR: 1.45, 95% L: 1.04, 95% U: 2.03). For cocaine and opiates, the association between drug use and violent method vary by educational attainment. Importantly, knowledge of the presence and type of specific drug is strongly associated with the method of suicide.
物质使用与自杀之间的联系已得到充分证实。然而,很少有研究分析物质使用与自杀方式之间的关系。本文分析了特定药物与自杀方式之间的关联,这是一个关键话题,因为药物使用与自杀病因相关,且可能催生旨在阻止自杀的政策。我们利用科罗拉多州过量死亡报告系统(COVDRS)和逻辑回归分析了2004年至2009年间科罗拉多州3389例上吊和枪击自杀案例中死者体内的药物情况。在控制了人口统计学因素后,我们发现阿片类药物与枪击自杀呈正相关(比值比:1.92,95%置信区间下限:1.27,95%置信区间上限:2.86),而抗抑郁药与上吊自杀呈正相关(比值比:1.45,95%置信区间下限:1.04,95%置信区间上限:2.03)。对于可卡因和阿片类药物,药物使用与暴力自杀方式之间的关联因受教育程度而异。重要的是,特定药物的存在及类型与自杀方式密切相关。