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近年来，恶性神瘤灼死亡率似有增加趋势。为了解其确切死亡情况，我们对1990年—1992年安徽省有代表性的地区进行了抽样调查，并将结果与1974年—1976年的同类型调查进行比较。资料和方法一、调查地区的选定根据卫生部信息统计中心规定的抽样办法，结合安徽省的地理代表性和197
In recent years, there has been an increase in the mortality rate of malignant tumors. In order to understand its exact death situation, we conducted a sample survey of representative areas in Anhui Province from 1990 to 1992 and compared the results with those of the same type of survey from 1974 to 1976. Materials and Methods I. Selection of survey area According to the sampling method prescribed by the Ministry of Health Information Statistics Center, combine the geographical representation of Anhui Province with 197