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癌症的发生与环境因素有关,而食品作为环境因素之一与癌症的相关性约占50％左右,胃癌是世界上发病率最高的恶性肿瘤之一,发达国家中目前仍以日本最高,男女分别为50.4及25.4/10万,美国最低分别为6.4及3.1/10万,我国胃癌也是占各种恶性肿瘤第二位,就上海地区从1978～1984年胃癌发病率统计资料经标化后男女性别分别为58.3～57.9/10万和24.6～23.7/10万。Wakabayashi等曾对日本、美国、朝鲜、菲律宾等国的酱油经亚
The occurrence of cancer is related to environmental factors, and food, as an environmental factor, is responsible for approximately 50% of the correlation with cancer. Gastric cancer is one of the highest incidence of malignant tumors in the world. In developed countries, it is still the highest in Japan. It is 50.4 and 25.4 per 100,000. The lowest in the United States is 6.4 and 3.1 per 100,000. China’s stomach cancer also accounts for the second largest number of malignant tumors. After standardization of the statistical data on the incidence of gastric cancer from 1978 to 1984 in Shanghai, the gender of men and women They were 58.3 to 57.9/100,000 and 24.6 to 23.7/100,000 respectively. Wakabayashi et al. used soy sauce in Japan, the United States, North Korea, and the Philippines.