School of Population Health, University of Queensland, Brisbane, Australia.
J Anxiety Disord. 2013 Oct;27(7):735-41. doi: 10.1016/j.janxdis.2013.09.011. Epub 2013 Sep 25.
We tested if the risk of suicidal ideation in individuals with PTSD symptoms was dependent on comorbid sleep disturbance. Our cross-sectional sample included 2465 participants with complete data from the 21 year follow-up of the Mater University Study of Pregnancy (MUSP), a birth cohort study of young Australians. Using structural equation modelling with indirect pathways we found that 12 month PTSD symptoms did not directly predict suicidal ideation at 21 when adjusting for major depression symptoms, polyvictimization and gender. However, PTSD symptoms had an indirect effect on suicidal ideation via past-month sleep disturbance. Our results suggest that increased suicidal ideation in those with PTSD may result from the fact that PTSD sufferers often exhibit other comorbid psychiatric conditions which are themselves known to predict suicidal behaviours. Sleep disturbance may be targeted in those who experience PTSD to help prevent suicidal ideation.
我们测试了 PTSD 症状个体的自杀意念风险是否取决于共病睡眠障碍。我们的横断面样本包括来自 Mater 大学妊娠研究（MUSP）的 21 年随访的 2465 名参与者，这是一项针对年轻澳大利亚人的出生队列研究。使用带有间接途径的结构方程模型，我们发现，在调整了重度抑郁症症状、多灾种暴露和性别之后，12 个月的 PTSD 症状并不会直接预测 21 个月时的自杀意念。然而，PTSD 症状通过过去一个月的睡眠障碍对自杀意念产生了间接影响。我们的结果表明，PTSD 患者自杀意念增加可能是由于 PTSD 患者经常表现出其他共病精神疾病，而这些疾病本身就被认为会预测自杀行为。在经历 PTSD 的人群中，可能需要针对睡眠障碍进行治疗，以帮助预防自杀意念。
