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Cancer Lett. 1997 Jul 15;117(1):17-22.

A case-control study of risk factors of nasopharyngeal carcinoma.

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Cancer Center, Sun Yat-Sen University of Medical Sciences, Guangzhou, People's Republic of China.


Risk factors and nasopharyngeal carcinoma (NPC) in residents of Guangzhou city were investigated in a case-control study: 104 cases were compared with an equal number of age, sex, and neighborhood-matched controls. The results of multiple conditional regression of logistic model showed that plum vegetable (adjusted OR = 1.81, 95% CI 1.01-3.33), preserved prune (adjusted OR = 2.95, 95% CI 1.04-8.41), no separate kitchen (if >35 years, adjusted OR = 1.98, 95% CI 1.24-3.75), kitchen range without chimney (if >10 years, adjusted OR = 2.72, 95% CI 1.56-4.73) and hereditary factor (adjusted OR = 8.27, 95% CI 1.94-35.54) were significantly associated with an increased risk of NPC. Grape (adjusted OR = 0.31, 95% CI 0.17-0.58) may be a protective factor.

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