Malta Loretta S, Wyka Katarzyna E, Giosan Cezar, Jayasinghe Nimali, Difede JoAnn
Weill Medical College of Cornell Department of Psychiatry, New York, NY 10065, United States.
J Anxiety Disord. 2009 Mar;23(2):223-9. doi: 10.1016/j.janxdis.2008.07.004. Epub 2008 Jul 22.
This prospective longitudinal study examined the ability of re-experiencing, avoidance, numbing, and hyperarousal symptoms to predict persistence of posttraumatic stress disorder (PTSD) in disaster workers followed for 2 years. Cluster analyses suggested that overall severity was the best predictor of PTSD at follow up, but for groups with PTSD of moderate severity, numbing symptoms were also associated with PTSD at the 2-year follow up. Regression analyses with all four symptom groups as independent variables found that only numbing and re-experiencing symptoms predicted PTSD at the 1 year follow up, and only numbing symptoms predicted PTSD at the 2-year follow up. Findings suggest that numbing symptom severity could be used as a risk index of very chronic PTSD, especially when the overall PTSD severity falls in the moderate range.
这项前瞻性纵向研究考察了重现、回避、麻木和过度警觉症状预测灾难救援人员创伤后应激障碍（PTSD）持续存在情况的能力，这些人员被随访了两年。聚类分析表明，总体严重程度是随访时PTSD的最佳预测指标，但对于中度PTSD患者群体，麻木症状在两年随访时也与PTSD相关。以所有四个症状组作为自变量的回归分析发现，仅麻木和重现症状在一年随访时可预测PTSD，而仅麻木症状在两年随访时可预测PTSD。研究结果表明，麻木症状的严重程度可作为非常慢性PTSD的风险指标，尤其是当PTSD总体严重程度处于中度范围时。
