Objective: To assess the current situation and influencing factors of posttraumatic stress disorder (PTSD) of medical workers after the explosive accident in Tianjin port. Methods: 7 months after the accident, cross-sectional study and convenience sampling and posttraumatic stress disorder check-list-civilian version(PCL-C) were used. The regression equations of the total score of PCL-C were built with multiple stepwise regression analysis. Results: 195 questionnaires were valid, the positive rate of PTSD was 19.5%(38), with the positive rate of re-experience symptom being 42.6%(83), avoidance symptom 13.8% (27) and hyperarousal symptom 41.0%(80). The results of regression indicated that gender, self-assessed mental stress, the injury of respondents’ relatives, social objective support and negative response are the contributing factors of PTSD symptoms(P<0.05). Conclusion: The positive rate of PTSD of respondents was high, more measures should be taken to prevent PTSD for medical workers.

目的：了解天津港爆炸事故后受灾医务救援人员创伤后应激障碍(PTSD) 症状现状，并分析其影响因素。方法：采用横断面研究的方法，于天津港爆炸事故后第7个月，使用创伤后应激障碍症状清单平民版(PCL-C)，通过方便抽样对天津市泰达医院受灾医务救援人员进行PTSD症状调查，并通过logistic回归分析筛查PTSD症状的危险因素。结果：195人完成问卷填写，结果显示PTSD阳性率为19.5%（38）；三大核心症状的再体验症状群阳性率42.6%（83），回避/麻木症状群阳性率13.8%（27），警觉性增高症状群阳性率41.0%（80）。logistic回归分析显示，性别，自觉精神压力，其亲人受伤情况、客观社会支持和消极应对情况是PTSD症状的独立危险因素(P<0.05)。结论：天津港爆炸事故后，受灾医务救援人员存在创伤后应激障碍。对于具有PTSD危险因素的人群，应予以关注，并采取积极的干预措施以预防其PTSD的发生发展。