Conclusion The main risk factors of nasopharyngeal carcinoma in China was history of chronic rhinitis, NPC family history, intake of preserved food, and household smog; while intake of fresh vegetable and fruit was a protect factor.

• 结论鼻咽疾病史、家族癌症史、食用腌制食品和居室烟雾是我国鼻咽癌发病的主要危险因素,食用新鲜蔬菜水果为其保护因素。