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胃癌是常见恶性肿瘤之一,在我国,胃癌是排名第二位的常见恶性肿瘤,和排名第三位的最常见的癌症死因。其发病有明显的地域性差别,在我国的西北与东部沿海地区胃癌发病率比南方地区明显高。好发年龄在50岁以上,男女发病率之比为2∶1。胃癌发生的危险因素包括幽门螺杆菌感染、吸烟和高盐饮食,也有小部分胃癌与遗传性易感综合征有关。我国胃癌高发区成人Hp感染率在60%以上;吸烟者的胃癌发病危险较不吸烟者高50%;长期食用薰烤、
Gastric cancer is one of the common malignant tumors. In China, gastric cancer is the second most common malignant tumor, and the third most common cancer cause of death. The incidence of significant regional differences in the incidence of gastric cancer in the northwestern and eastern coasts of China than the southern region was significantly higher. Good hair age over 50 years of age, the incidence of men and women ratio of 2: 1. Risk factors for gastric cancer include Helicobacter pylori infection, smoking and high-salt diet, but also a small part of gastric cancer and genetic predisposition syndrome. In our country, the prevalence of Hp infection in adults with high incidence of gastric cancer is over 60%; the incidence of gastric cancer among smokers is 50% higher than that of non-smokers;