1982年上海市因肿瘤死亡的人数超过12,000人,其中消化道肿瘤占整个肿瘤的50％以上,胃癌又占整个消化道肿瘤的52％以上。要把肿瘤的死亡率降下来,先抓胃癌的“三早”是一个重要环节。普查是目前降低胃癌死亡率的一个较行之有效的方法。从1972年起我院开始普查,迄今已做过许多梯度筛选的方法,粗筛手段主要是生化免疫法,但假阳性、假阴性率太高,近年来不再用于普查。对上 In 1982, the number of deaths from cancer in Shanghai exceeded 12,000, of which digestive tract tumors accounted for more than 50% of the entire tumor, and gastric cancer accounted for more than 52% of the entire gastrointestinal cancer. To bring down the mortality rate of cancer, firstly grasping the “three mornings” of gastric cancer is an important link. The census is a more effective method to reduce the mortality rate of gastric cancer. Since 1972, our hospital has begun a census. So far, many gradient screening methods have been performed. The primary screening method is mainly biochemical immunization. However, false positive and false negative rates are too high and have not been used for census in recent years. match