Cancer risks from betel quid chewing beyond oral cancer: a multiple-site carcinogen when acting with smoking

@article{Wen2010CancerRF,
  title={Cancer risks from betel quid chewing beyond oral cancer: a multiple-site carcinogen when acting with smoking},
  author={Chi Pang Wen and Min Kuang Tsai and Wen Shen Isabella Chung and Hui Ling Hsu and Yen-chen Chang and Hui Ting Chan and Po Huang Chiang and Ting Yuan David Cheng and Shan Pou Tsai},
  journal={Cancer Causes \& Control},
  year={2010},
  volume={21},
  pages={1427-1435}
}
ObjectivesThis cohort study is to assess the extent of cancer risks of betel quid chewing (without tobacco added) beyond oral cancer, as such information was limited from case–control studies.MethodsThe cohort, selected from participants in a medical screening program since 1994, consisted of 177,271 adult men with 19.2% chewers of betel quid. As of 2006, out of 4,840 deaths, 1,901 cancer deaths were identified. Mortality hazard ratios (HR) were estimated by Cox proportional hazard model. Life… 
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