Parkwood Hospital Operational Stress Injury Clinic, St. Joseph's Health Care London, London, ON, Canada.
J Psychiatr Res. 2011 Nov;45(11):1483-8. doi: 10.1016/j.jpsychires.2011.06.014. Epub 2011 Jul 12.
Despite efforts to elucidate the relationship between traumatic event exposure and adverse mental health outcomes, our ability to understand why only some trauma-exposed individuals become emotionally affected remains challenged. The aim of the current study is to determine the relations between social support, religiosity, and number of lifetime traumatic events experienced on past-12 month posttraumatic stress disorder (PTSD), depression, and suicidal ideation (SI) in a nationally representative sample of Canadian Forces personnel. The current study used data from the Canadian Community Health Survey Cycle 1.2 - Canadian Forces Supplement. The impact of a number of predictive and mediating factors was assessed using structural equation modeling. Social support and number of lifetime traumatic events experienced were significant predictors of past-year PTSD, depression, and SI; however PTSD did not mediate the relationship between number of traumatic events and SI nor between social support and SI. Conversely, depression mediated the relationship between number of traumatic events and SI. Possible mechanisms for these findings and their implications are discussed.
尽管我们努力阐明创伤事件暴露与不良心理健康结果之间的关系，但我们理解为什么只有一些创伤暴露的个体受到情绪影响的能力仍然受到挑战。本研究的目的是确定在加拿大军队人员的全国代表性样本中，社会支持、宗教信仰和一生中经历的创伤事件数量与过去 12 个月创伤后应激障碍（PTSD）、抑郁和自杀意念（SI）之间的关系。本研究使用了加拿大社区健康调查周期 1.2-加拿大军队补充调查的数据。使用结构方程模型评估了许多预测和中介因素的影响。社会支持和一生中经历的创伤事件数量是过去一年 PTSD、抑郁和 SI 的重要预测因素；然而，PTSD 并没有调节创伤事件数量与 SI 之间的关系，也没有调节社会支持与 SI 之间的关系。相反，抑郁调节了创伤事件数量与 SI 之间的关系。讨论了这些发现的可能机制及其意义。
