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１９９０年４～１０月，在福建闽南地区进行以医院为基础的１：１配对的病例－对照研究，着重探讨除ＥＢ病毒以外其他环境因素与鼻咽癌发生的关系。调查内容包括一般情况、居住史、饮食史、烟酒史、饮茶史、家族肿瘤史、职业史及慢性耳鼻咽喉疾病史等。调查结果经危险状态的单因素检验及条件Ｌｏｇｉｓｔｉｃ回归分析，发现多食腌制食物，暴露于厨房的燃烟、油烟，吸烟及被动吸烟暴露等可能是鼻咽癌的危险因素，而新鲜蔬菜可降低鼻咽癌的发病危险。
From April to October 1990, a case-control study of hospital-based 1: 1 pairing was conducted in Minnan, Fujian Province, and focused on the relationship between environmental factors other than Epstein-Barr virus and nasopharyngeal carcinoma. The survey includes the general situation, residence history, diet history, alcohol and tobacco history, tea drinking history, family history of cancer, occupational history and history of chronic otolaryngological diseases. The results of the single-factor test of dangerous conditions and conditional Logistic regression analysis found that eating more food, exposed to the kitchen of the smoke, fumes, smoking and passive smoking exposure may be risk factors for nasopharyngeal carcinoma, and fresh vegetables may Reduce the risk of nasopharyngeal cancer.