【摘要】 1982年1月至12月,采用1:2病例-对照研究法,对南京市城区胃癌的危险因素进行了调查,121例胃癌均经胃镜检查并为病理确诊;两个对照组（其他癌和其他疾病组）均选自同期住于同一医院的病例。调查结果采用X²MH、OR 和SIC 法进行了统计分析,发现经常吃干硬食品（E₁）,经常吃腌菜（G₁′）和精神因素（K₁）,即（E₁K₁G₁′）是南京市城区胃癌流行的主要危险因素。当该三因素同时存在时具有明显的协同致癌作用。更多还原

【Abstract】 Through January to December in the year of 1982,the author accompanied with hiscolleagues made a preliminary investigation of hazardous inducing factors of gastric canerin Nanjing by 1:2 case control study.121 gastric cancer cases selected form 6 localhospitals were pathologically diagnosed by gastroscopy.Cases and controls were matchedwith sex,age,race,occupation and residence.It took two controls for the study,theywere malignant tumors of non-digestive system and non-tumorous cases of non-dagestive andnon-respiratory systems for the comparison with the gastric cancer series.Analyses of datafindings by means of X²MH test,Odds ratio （OR） and simplified information criterion（SIC） showed that the main dangerous factors which were closely related to gastric cancerare frequent eating of dried hard food（F₁）,pickled vegetables（G’1） and mental factors（K₁）,It was noted that the simultaneous co-existence of these factors E₁ K₁G’₁ would result inan apparent synergic effect in inducing gastric cancer in Nanjing.更多还原