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收集１１４例胃癌病例，６０例慢性胃病病例和２５例正常对照者，选择胃癌流行病学与病因学上有关指标及临床体征、大便隐血等６１项因素，根据模式识别原理建立程序在计算机上经自学后建立识别系数，并对１４６例胃癌、１７０例胃病、９２例正常人进行判别，其符合率分别为８９％、５３．３％和９０．２％。应用本方法对４５～６４岁的男性人群５１７３５人进行普查，筛选出“阳性”者７４１２人，初筛阳性率为１４．３３％，其中胃镜检查人数为５９２９人，精查受检率为８０．０％，检出胃癌５９例，其中早期胃癌１７例，占２８．８％，胃癌检出率为普查填表人群的１．１４‰，检出胃部良性疾病４９５１例，检出率为９．５７％。
A total of 114 cases of gastric cancer, 60 cases of chronic gastritis and 25 cases of normal controls were collected. Sixty-one factors including epidemiology and etiology of gastric cancer, clinical signs, and occult blood were selected. The procedure was established on the computer according to the principle of pattern recognition. After the self-study, a recognition coefficient was established and 146 cases of gastric cancer, 170 cases of stomach disease, and 92 cases of normal persons were identified. The compliance rates were 89%, 53.3%, and 90.2%, respectively. This method was used to conduct a survey of 51,735 male population aged 45-64 years. A total of 7412 positive people were screened out. The positive rate of screening was 14.33%, of which 5929 were examined by gastroscopy, and the examination rate was 80. In .0%, 59 cases of gastric cancer were detected, including 17 cases of early gastric cancer, accounting for 28.8%, and the detection rate of gastric cancer was 1.14% of the population in the survey and 4951 cases of benign stomach diseases were detected. 9.57%.