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目的探讨在施行食管癌放疗中的患者出现放射性肺炎的危险因素。方法对病例回顾性分析，选择2011年苏北医院接受胸部放射治疗的患者为研究对象(食管癌86例),选取肺炎组42例及对照组44例，观察指标并探求其在两组中是否存在统计学差异。通过检验，ROC曲线，2检验进行分析。结果①V5有明显的统计学意义，<0.05，平均放射剂量、V10、V15在二组在<0.10的情况下亦有一定的统计学意义，<0.10，②V20、V25、V30在二组中没有明显的差别，③化疗对放射性肺炎无明显相关性。结论化疗对于放射性肺炎的相关性有待进一步研究。“,”Objective To explore the surgical esophageal cancer patients in the radiotherapy of radioactive pneumonia risk factors. Methods For cases were retrospectively analyzed, subei hospital in 2011 as the research object in patients undergoing chest radiotherapy (86 cases of esophageal cancer), select pneumonia group of 42 cases and control group in 44 cases, observation indicators and to explore its whether there is a dif erence in the two groups. Through the t test, ROC curve, chi-square analysis. Results ①The V5 has obvious statistical significance, < 0.05, and the average radiation dose, V10, V15 in two groups ( < 0.10 cases also have certain statistical significance, < 0.10, 2. V20, V25, V30 had no obvious dif erence in the two groups. No obvious cor elation between 3 chemotherapy for radioactive pneumonia. Conclusion the cor elation of chemotherapy for radioactive pneumonia needs further research.