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人类胃中发现幽门螺旋菌(HP)使得对以前确立的胃癌病因增加了新的内容。胃癌胃癌的流行病学胃癌主要是一种贫困所致疾病。从胃癌高危区的日本迁移到低危区美国的人群即使在年轻时移民,癌的危险性只是中度下降。第二代移民的胃癌危险性则常接近他们的新国家。这些研究可推导出环境因素始发恶性转变,并主要在儿童期起作用。胃癌发病率下降还与食品卫生和卫生条件
The discovery of Helicobacter pylori (HP) in the human stomach has added new elements to the previously established cause of gastric cancer. Gastric Cancer Gastric Epidemiology Gastric cancer is mainly a disease caused by poverty. The risk of cancer is only moderately reduced if the population migrating from Japan, a high-risk area of gastric cancer, to the United States in a low-risk area migrates even when they are young. Second-generation immigrants often have their stomach cancer risk close to their new country. These studies can deduce the malignant transformation of environmental factors and mainly play a role in childhood. The decline in the incidence of gastric cancer is also related to food hygiene and hygienic conditions