Beijing Suicide Research and Prevention Center, Beijing Hui Long Guan Hospital, Beijing, China.
WHO Collaborating Center for Research and Training in Suicide Prevention, Beijing, China.
Suicide Life Threat Behav. 2015 Aug;45(4):505-17. doi: 10.1111/sltb.12144. Epub 2014 Dec 2.
The prevalence and odds ratios of different suicide risk factors were compared in three pairs of decedents: 80 suicides and 25 injury decedents with blood relatives with suicidal behavior history (biologically exposed); 259 suicides and 126 injury decedents with unrelated acquaintances with suicidal behavior history (socially exposed); and 471 suicides and 523 injury decedents with neither relatives nor acquaintances with suicidal behavior history (unexposed). Negative life events and high psychological stress were more common in socially exposed suicides than in other suicides. The adjusted odds ratios of most established suicide risk factors were higher in unexposed decedents than in biologically or socially exposed decedents, suggesting that the predictive value of established risk factors wanes in individuals who have been exposed to suicidal behavior in family or friends.
80 例自杀者和 25 例因伤致死的死者,他们有自杀行为史的血亲(生物学暴露);259 例自杀者和 126 例因伤致死的死者,他们有无自杀行为史的不相关熟人(社会暴露);471 例自杀者和 523 例因伤致死的死者,他们既没有自杀行为史的血亲也没有自杀行为史的熟人(未暴露)。在社会暴露的自杀者中,负性生活事件和高心理压力比其他自杀者更为常见。大多数已确定的自杀风险因素的调整后优势比在未暴露的死者中高于生物学或社会暴露的死者,这表明在个体中,已确定的风险因素的预测价值在接触过家庭或朋友自杀行为的个体中减弱。