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探讨海安县胃癌的危险因素。［方法］对１７７例胃癌新发病例进行１∶１的病例对照研究。［结果］ 精神创伤史、慢性胃病史、１５年前低收入、生气时吃饭、１５年前饮用河塘水与胃癌的发生呈正相关；常吃新鲜蔬菜、常吃豆制品、１５年前每日饭量大能减少胃癌的发生。［结论］海安县胃癌的发生与生活条件、饮食习惯、精神因素有关。
To investigate the risk factors of gastric cancer in Hai’an County. [Methods] A 1:1 case-control study was performed on 177 new cases of gastric cancer. [Results] History of trauma, history of chronic gastritis, low income 15 years ago, eating when angry, drinking water of rivers and ponds 15 years ago was positively related to the occurrence of gastric cancer; eats fresh vegetables, eats soy products often, daily 15 years ago High appetite can reduce the incidence of gastric cancer. [Conclusion] The occurrence of gastric cancer in Hai’an County was related to living conditions, eating habits and mental factors.