There is a growing body of literature on the diagnosis of posttraumatic stress disorder (PTSD) after committing homicide that has examined the prevalence of this phenomenon among individuals who have been convicted, but these studies considerably vary. The present study was the first meta‐analysis to synthesize scientific evidence regarding the prevalence of offense‐related PTSD among convicted killers. A total of 691 articles were identified through an initial screening process, and the final analysis included 11 studies that met the analysis criteria. We examined the prevalence of PTSD after committing homicide and explored how these rates varied by sample type, offender type, diagnosis timeframe, and diagnosis type. Among adult offenders, the pooled prevalence was 42.6%, 95% CI [38.0%, 47.4%], for current full‐criteria homicide‐related PTSD and 13.1%, 95% CI [9.9%, 17.2%], for current partial‐criteria homicide‐related PTSD. For mixed offenders (i.e., killers and violent offenders), the pooled prevalence of current full‐criteria offense‐related PTSD was 33.1% (95% CI [14.1, 59.8]). Thus, we found that PTSD prevalence was higher in killers than mixed offenders, although this difference was not statistically significant. Finally, among youth mixed offenders, the pooled prevalence for current full‐criteria offense‐related PTSD was 5.3%, 95% CI [2.9%, 9.5%]. These findings provide evidence of the high rate of this phenomenon, especially among convicted adults.

中文翻译：

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杀人是创伤后压力的来源？：杀人后创伤后应激障碍患病率的元分析

越来越多的关于杀人后诊断创伤后应激障碍 (PTSD) 的文献研究了这种现象在被定罪者中的普遍性，但这些研究差异很大。本研究是第一个综合分析关于被定罪的杀手中与犯罪相关的 PTSD 患病率的科学证据的荟萃分析。初步筛选共筛选出 691 篇文章，最终分析纳入 11 项符合分析标准的研究。我们检查了杀人后 PTSD 的患病率，并探讨了这些比率如何因样本类型、犯罪者类型、诊断时间范围和诊断类型而异。在成年罪犯中，汇总流行率为 42.6%，95% CI [38.0%, 47.4%]，对于当前的完整标准凶杀相关 PTSD 和 13.1%, 95% CI [9.9%, 17.2%], 对于当前部分标准凶杀相关的 PTSD。对于混合犯罪者（即杀手和暴力犯罪者），当前全标准犯罪相关 PTSD 的汇总患病率为 33.1%（95% CI [14.1, 59.8]）。因此，我们发现杀手的 PTSD 患病率高于混合犯罪者，尽管这种差异在统计上并不显着。最后，在青年混合犯罪者中，当前全标准犯罪相关 PTSD 的汇总患病率为 5.3%，95% CI [2.9%, 9.5%]。这些发现提供了这种现象发生率很高的证据，尤其是在被定罪的成年人中。当前完全标准的犯罪相关 PTSD 的汇总患病率为 33.1%（95% CI [14.1, 59.8]）。因此，我们发现杀手的 PTSD 患病率高于混合犯罪者，尽管这种差异在统计上并不显着。最后，在青年混合犯罪者中，当前全标准犯罪相关 PTSD 的汇总患病率为 5.3%，95% CI [2.9%, 9.5%]。这些发现提供了这种现象发生率很高的证据，尤其是在被定罪的成年人中。当前完全标准的犯罪相关 PTSD 的汇总患病率为 33.1%（95% CI [14.1, 59.8]）。因此，我们发现杀手的 PTSD 患病率高于混合犯罪者，尽管这种差异在统计上并不显着。最后，在青年混合犯罪者中，当前全标准犯罪相关 PTSD 的汇总患病率为 5.3%，95% CI [2.9%, 9.5%]。这些发现提供了这种现象发生率很高的证据，尤其是在被定罪的成年人中。