<location>Graduate Institute of Life Sciences, National Defense Medical Center, Taiwan, Republic of China</location>
Crisis. 2013 Jan 1;34(6):398-405. doi: 10.1027/0227-5910/a000218.
Previous Western studies have reported that the prevalence of death by suicide within 1 year after self-harm was 0.5-2%; however, no studies have focused on the Far East.
To calculate the prevalence of death by suicide after self-harm over different lengths of follow-up time and to determine the predictors of death by suicide after self-harm.
Our study was based on 3,388 inpatients hospitalized between 2000 and 2007 in any of the 1,230 hospitals in Taiwan. Death by suicide after self-harm among the members of this cohort was tracked after 3 months, 6 months, and 1-8 years. The tracking continued until December 31, 2008. We analyzed the prevalence and risk factors of death by suicide after self-harm using Cox's regression model.
Of the 3,388 individuals with a history of self-harm included in the study, 48 (1.4%) died by suicide after self-harm within 3 months and 97 (2.9%) within 1 year. In all, 144 (4.3%) died by suicide after self-harm within 8 years. The predictors of death by suicide were violent methods (such as hanging, drowning, firearms, and jumping), low income, and severe illness. Moreover, an interaction effect was noted between low income and severe illness on the outcome (death by suicide).
It seems that effective healthcare for individuals who engage in self-harming behavior would benefit from supplementing medical care with social assistance, such as the support of a social worker.
先前的西方研究报告称，自残后 1 年内自杀死亡的比例为 0.5-2%；然而，尚无研究关注远东地区。
计算不同随访时间后自残后自杀死亡的比例，并确定自残后自杀的预测因素。
我们的研究基于 2000 年至 2007 年间台湾 1230 家医院中任何一家住院的 3388 名住院患者。对该队列成员自残后自杀的情况进行了 3 个月、6 个月和 1-8 年的跟踪。跟踪一直持续到 2008 年 12 月 31 日。我们使用 Cox 回归模型分析了自残后自杀的流行率和危险因素。
在所研究的 3388 名有自残史的个体中，有 48 人（1.4%）在 3 个月内自残后自杀，97 人（2.9%）在 1 年内自杀。总计，144 人（4.3%）在 8 年内自杀。自杀的预测因素是暴力手段（如上吊、溺水、枪支和跳楼）、低收入和重病。此外，还注意到低收入和重病对结果（自杀）的交互作用。
似乎对有自残行为的个体进行有效的医疗保健，如果辅以社会援助（例如社会工作者的支持），将会受益。
