Brezo Jelena, Paris Joel, Tremblay Richard, Vitaro Frank, Zoccolillo Mark, Hébert Martine, Turecki Gustavo
McGill Group for Suicide Studies, Douglas Hospital Research Center, Montreal, Canada.
Psychol Med. 2006 Feb;36(2):191-202. doi: 10.1017/S0033291705006719. Epub 2005 Dec 7.
Adults in their twenties appear to be at high risk for suicidal behaviors (SBs) and there is substantial evidence suggesting that certain personality traits may increase individual vulnerability to suicide.
We investigated relationships of personality traits with two SBs in a cohort (n=1140) of 21- to 24-year-old adults, representative of the general population of Quebec. Subjects were assessed using a series of structured diagnostic and personality trait questionnaires. Multivariate logistic regression analyses were employed to identify personality trait correlates of suicide-attempt history and serious suicidal ideation in the context of other known risk factors, such as psychopathology and experiences of childhood sexual and physical abuse.
Traits of conduct problems contributed to both suicide attempts [odds ratio (OR) 1.03, 95% confidence interval (CI) 1.01-1.06] and suicidal ideation (OR 1.04, 95% CI 1.02-1.07), while identity problems (OR 1.10, 95% CI 1.07-1.13) and gender-moderated impulsivity contributed exclusively to suicidal ideation.
Personality traits may make independent contributions to current suicidal ideation and previous suicide attempts in certain subgroups of suicidal individuals. In order to further explore their utility as markers of suicide risk and targets of intervention further investigation in clinical samples and other cultural and age groups is necessary.
二十多岁的成年人似乎有较高的自杀行为风险，且有大量证据表明某些人格特质可能会增加个体的自杀易感性。
我们在一个代表魁北克普通人群的21至24岁成年人队列（n = 1140）中，研究了人格特质与两种自杀行为之间的关系。使用一系列结构化诊断和人格特质问卷对受试者进行评估。在其他已知风险因素（如精神病理学以及童年性虐待和身体虐待经历）的背景下，采用多变量逻辑回归分析来确定自杀未遂史和严重自杀意念的人格特质相关因素。
行为问题特质既导致自杀未遂（优势比[OR] 1.03，95%置信区间[CI] 1.01 - 1.06），也导致自杀意念（OR 1.04，95% CI 1.02 - 1.07），而身份认同问题（OR 1.10，95% CI 1.07 - 1.13）和性别调节的冲动性仅导致自杀意念。
人格特质可能对某些自杀亚组中的当前自杀意念和既往自杀未遂有独立影响。为了进一步探索它们作为自杀风险标志物和干预靶点的效用，有必要在临床样本以及其他文化和年龄组中进行进一步研究。
