Souza Wanderson F, Figueira Ivan, Mendlowicz Mauro V, Volchan Eliane, Mendonça-de-Souza Ana C, Duarte Antônio F A, Monteiro da Silva Angela M, Marques-Portella Carla, Mari Jair J, Coutinho Evandro Silva Freire
Department of Epidemiology, National School of Public Health (ENSP-FIOCRUZ), Federal University of Rio de Janeiro, Brazil.
J Nerv Ment Dis. 2008 Nov;196(11):852-5. doi: 10.1097/NMD.0b013e31818b4682.
Our study evaluated the relationship between positive affect (PA) and negative affect (NA) traits on the development of posttraumatic stress symptoms (PTSS) among peacekeepers. A longitudinal study with 138 army personnel deployed to a peacekeeping mission in Haiti was conducted. An instrument for measuring PA and NA traits was used before deployment. PTSS, indexed by posttraumatic stress disorder Checklist--Military Version (PCL-M) and frequency of stressful situations were measured after return. Regression analysis showed that both NA and number of stressful situations contributed toward increasing PCL-M scores (Adjusted R = 0.25; p < 0.001). We also found that NA traits interact with intensively stressful situations enhancing the occurrence of PTSS (Adjusted R = 0.32; p < 0.001). These findings suggest that NA traits are an important predictor for PTSS among peacekeepers and also worsen the consequences of being exposed to stressful situations.
我们的研究评估了维和人员的积极情绪（PA）和消极情绪（NA）特质与创伤后应激症状（PTSS）发展之间的关系。对138名被部署到海地执行维和任务的军队人员进行了一项纵向研究。在部署前使用了一种测量PA和NA特质的工具。返回后，通过创伤后应激障碍检查表——军事版（PCL-M）和应激情况频率对PTSS进行测量。回归分析表明，NA和应激情况数量均导致PCL-M分数增加（调整后R = 0.25；p < 0.001）。我们还发现，NA特质与强烈应激情况相互作用，增加了PTSS的发生（调整后R = 0.32；p < 0.001）。这些发现表明，NA特质是维和人员PTSS的重要预测因素，并且还会加重暴露于应激情况的后果。
