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根据湖南省70年代、90年代两次以肿瘤为主的全死因调查，湖南省恶性肿瘤死亡发生了明显变化，恶性肿瘤平均总死亡率对年中增长了15．35％，对人民的生命健康危害越来越严重。为此本文对其流行趋势作一分析，以便为今后的肿瘤防治工作提供依据。一、资料与方法资料来源于湖南省1
According to Hunan’s two major causes of death from cancer in the 1970s and 1990s, the death of malignant tumors in Hunan Province has changed significantly. The average total mortality of malignant tumors has increased by 15.35% over the middle of the year. The harm is getting worse. Therefore, this article makes an analysis of its epidemic trend in order to provide the basis for future cancer prevention and control work. I. Information and Methods Data from Hunan Province 1