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我国胃癌患者的死亡率相当高,每年死于胃癌的患者约占全部恶性肿瘤死亡者的四分之一,也就是说,每年大约有12万人死于胃癌。我国胃癌的发病情况有明显的地区性,甘肃、宁夏、辽东半岛、吉林、胶东半岛、江浙沿海地区是胃癌的高发区。高发区的胃癌发病率比低发区的发病率明显增高,相差极为悬殊。这说明,高发区的环境中可能存在着明显的致癌因素。通过胃癌的流行病学和病因学调查,发现引起胃癌发病的某些环境因素与病人本身的内环境有一定的联系,特别是与病人患有萎缩性胃炎、胃溃疡、慢性胃病有关。
The mortality rate of patients with gastric cancer in our country is quite high. Every year, patients who die from gastric cancer account for about one-fourth of all cancer deaths. That is to say, about 120,000 people die of gastric cancer every year. The incidence of gastric cancer in our country is obviously regional. Gansu, Ningxia, Liaodong Peninsula, Jilin, Jiaodong Peninsula, and Jiangsu and Zhejiang coastal areas are high incidence areas of gastric cancer. The incidence of gastric cancer in high-incidence areas is significantly higher than that in low-prevalence areas, and the difference is extremely wide. This shows that there may be obvious carcinogenic factors in the environment of high-incidence areas. Through the epidemiology and etiological investigation of gastric cancer, it has been found that certain environmental factors that cause the onset of gastric cancer have a certain relationship with the patient’s own internal environment, especially with the patient suffering from atrophic gastritis, gastric ulcer, and chronic gastric disease.