Lamis Dorian A, Ballard Elizabeth D, Patel Amee B
Emory University School of Medicine, Atlanta, GA, USA.
Suicide Life Threat Behav. 2014 Dec;44(6):629-40. doi: 10.1111/sltb.12095. Epub 2014 Apr 22.
The college years are marked by social changes and behavioral experimentation which may increase risk of suicidal ideation. We propose a novel pathway for the development of suicidal thoughts between two established suicide risk factors, loneliness and drug use, which have not been examined in a nonclinical sample. Data were collected from 207 undergraduate drug-using students at a large southeastern university. As hypothesized, suicidal ideation was positively correlated with both loneliness (r = .40) and drug use (r = .29). After controlling for several demographic variables, social desirability, and anxiety sensitivity, drug use was tested as a potential mediator in the loneliness-suicidal ideation link using a single-mediator model. Results indicated a significant indirect (mediated) effect of loneliness on suicidal ideation via drug use (ab = 0.09, 95% CI: 0.02-0.18), suggesting that loneliness may contribute to suicidal ideation through increased drug use among college students. Identification of and intervention with students reporting loneliness and drug use may be a promising suicide prevention strategy on college campuses.
大学时光以社会变革和行为实验为特征，这可能会增加自杀意念的风险。我们提出了一条在两个既定的自杀风险因素——孤独和药物使用之间产生自杀念头的新途径，这两个因素在非临床样本中尚未得到研究。数据收集自东南部一所大型大学的207名本科吸毒学生。正如所假设的那样，自杀意念与孤独（r = 0.40）和药物使用（r = 0.29）均呈正相关。在控制了几个人口统计学变量、社会期望和焦虑敏感性之后，使用单中介模型将药物使用作为孤独与自杀意念联系中的潜在中介进行了检验。结果表明，孤独通过药物使用对自杀意念有显著的间接（中介）效应（ab = 0.09，95% CI：0.02 - 0.18），这表明孤独可能通过大学生中药物使用的增加导致自杀意念。识别并干预报告有孤独和药物使用情况的学生可能是大学校园中有前景的自杀预防策略。
