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Drinking coffee may protect against certain cancer
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  • http://english.dbw.cn銆€銆€ 2010-06-24 09:06:37
     

    A cup of cappuccino sits on a table during the World Coffee Conference in Guatemala City February 26, 2010. (Xinhua/Reuters File Photo)

    A cup of cappuccino sits on a table during the World Coffee Conference in Guatemala City February 26, 2010. (Xinhua/Reuters File Photo)

     U.S. researchers have found a link between drinking coffee and a lower risk of head and neck cancer.

    The study was based on data from a pooled-analysis of nine studies collected by the International Head and Neck Cancer Epidemiology (INHANCE) consortium.

    Compared with non-drinkers, regular coffee drinkers had a 39- percent decreased risk of oral cavity and pharynx cancers combined, the results showed.

    The association is more reliable among those who are frequent, regular coffee drinkers, consuming more than four cups of coffee a day, according to the study published online on Tuesday in Cancer Epidemiology, Biomarkers & Prevention, a journal of the American Association for Cancer Research.

    "Since coffee is so widely used and there is a relatively high incidence and low survival rate of these forms of cancers, our results have important public health implications that need to be further addressed," said lead researcher Mia Hashibe, Ph.D., assistant professor in the department of family and preventive medicine at the University of Utah, Salt Lake City.

    "What makes our results so unique is that we had a very large sample size, and since we combined data across many studies, we had more statistical power to detect associations between cancer and coffee," she said.

    Additional research is warranted to characterize the importance of timing and duration of exposure and possible mechanisms of action, said Hashibe.

    The study adds to brewing evidence that coffee may contain anti- cancer ingredients.

    In a previous study, researchers at Harvard University found a strong inverse association between coffee consumption and the risk of lethal and advanced prostate cancers -- men who drank the most coffee had a 60-percent lower risk of aggressive prostate cancer than men who did not drink any coffee.

    In another study, researchers from the Imperial College, London found a decreased risk of gliomas, or brain tumors, associated with coffee.

    Author锛? 銆€銆€銆€Source锛? xinhua 銆€銆€銆€ Editor锛? Wu Qiong