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北京市房山区六渡乡1976～1985年10年间肝癌年平均标化死亡率47.2/10万,接近国内高发区水平。1986年11～12月对六渡乡肝癌高发区乙型肝炎病毒(HBV)感染状况进行了调查。材料和方法:六渡乡5个自然村为高发区;十渡乡5个村为中发区;平原5个自然村为低发区。中、低发区同期肝癌年平均标化死亡率分别为34.7/10万、9.3/10万。随机抽取上述各村40～65岁村民,物
The average standardized mortality rate of liver cancer in Liuduxiang, Fangshan District, Beijing from 1976 to 1985 was 47.2 / 100,000, which is close to the high incidence in China. From January to December 1986, Hepatitis B virus (HBV) infection in the high incidence area of liver cancer in Liutu Township was investigated. Materials and Methods: Five natural villages in Liudu Township are the high incidence areas; five villages in Shidu Township are Zhongfa District; and the five natural villages in the plain are the low incidence areas. In the low incidence of liver cancer over the same period the average standardized mortality were 34.7 / 100000, 9.3 / 100000. Randomly selected the above-mentioned villages 40 to 65-year-old villagers, objects