全国鼻咽癌协作组第五次会议于1979年2月6～12日在长沙召开。会议就以下问题进行了讨论: 1.流行病学病因学调查研究,近几年来虽有所进展,但仍未得出倾向性的意见。从地区性和人群的易感性来看,鼻癌咽病死率较高(6/10万)的县、市全部集中在我国南部,特别是集中在广东、广西、湖南、福建、江西等省,广东最高,病死率达9/10万以上。调查发现从高发区的广东移居到上海、四川、江西等地的居民,发病率仍然很 The fifth meeting of the National Cooperative Group of Nasopharyngeal Carcinoma was held in Changsha from February 6 to February 1979. The meeting discussed the following issues: 1. Epidemiological investigation of etiology, although progress has been made in recent years, but still no propensity to opinion. From the perspective of regional and population susceptibility, counties and cities with a high incidence of pharyngitis and nasopharyngeal cancer are all concentrated in the southern part of our country, especially in Guangdong, Guangxi, Hunan, Fujian and Jiangxi provinces, Guangdong highest mortality rate of 9/10 million or more. The survey found that residents who moved to Guangdong, Sichuan, Jiangxi and other places from high incidence areas of Guangdong still had a very high incidence