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胃癌在任何年龄均能发病,30岁以下的胃癌患者被称为青年人胃癌。Hansen等报道30岁以下发生的胃癌患者占全部胃癌例数1%。浅木茂等报道青年人群中胃癌的发病率是0.019%。我国20个单位尸检材料中胃癌360例,其中小于19岁6例(1.7%),20～29岁36例(10.0%),钱可大等报道35例青年人胃癌中年龄最小为21岁,26～30岁者26例,占74.2%。国外文献报道年龄越小的女性发病率越高,癌肿发生于胃窦部者亦多。在青年人胃癌中,女性的发病率明显增高,为1:1.3～2.6。国内男女患者之比为1.19～1.31:1,仍为男性略高于女性。
Gastric cancer can develop at any age. Gastric cancer patients under the age of 30 are known as young people with gastric cancer. Hansen et al. reported that gastric cancer patients under the age of 30 account for 1% of all cases of gastric cancer. The incidence of gastric cancer in youth population was reported by Asakusa and others to be 0.019%. There were 360 cases of gastric cancer in autopsy materials of 20 units in China, including 6 cases (1.7%) less than 19 years old and 36 cases (10.0%) aged 20-29 years. Qian Keda et al. reported that young persons with gastric cancer were youngest 21 years old. 26 to 30 years old 26 cases, accounting for 74.2%. Foreign literature reported that the younger the incidence of women, the higher the incidence of cancer in the gastric antrum were also more. In young women with gastric cancer, the incidence of women is significantly higher, ranging from 1:1.3 to 2.6. The ratio of male to female patients in China is 1.19 to 1.31:1, which is still slightly higher for men than for women.