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Meta-Analysis
. Feb-Mar 2017;69(2):211-220.
doi: 10.1080/01635581.2017.1263754. Epub 2017 Jan 17.

Green Tea Consumption and the Risk of Liver Cancer: A Meta-Analysis

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Meta-Analysis

Green Tea Consumption and the Risk of Liver Cancer: A Meta-Analysis

Chen-Xu Ni et al. Nutr Cancer. .

Abstract

Green tea is a commonly consumed beverage in Asia and has been suggested to have anticarcinogenic properties. To date, epidemiological evidence of the effect of green tea consumption on liver cancer risk remains ambiguous. The aim of this meta-analysis is to evaluate the association between green tea consumption and the risk of liver cancer. The summary relative risk for the highest consumption (≥5 cups/day) of green tea on liver cancer incidence compared with nondrinkers was 0.62 (95% confidence interval: 0.49-0.79). We also found a trend that the incidence of liver cancer was reduced with the increasing years of green tea intake (significance at >20 yr). A significant dose-response association was found between green tea drinking and liver cancer risk. The downward trend was most obvious when the consumption of green tea increased up to about 4 cups/day. The results showed that the increasing green tea intake may have a preventive effect against liver cancer.

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