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Research Question:
Drinking tea lowers the chances of getting oral cancer?

Study Design:
This overview article contained 19 studies with 4675 mouth cancer patients.

Results and conclusions:
The researchers found that drinking lots of tea compared to little, the chance of getting oral cancer significantly with 15% [95% CI = 0.779-0.934] reduced.

The researchers found in the subgroup analysis that drinking a lot of green tea compared to little, the chance of getting oral cancer significantly with 20% [95% CI = 0.673-0.947] reduced.

The researchers found in the subgroup analysis that drinking lots of black tea compared to little, the chance of getting oral cancer non-significant with 5% [95% CI = 0.792-1,146] reduced. Non-significant is, there is no link to a 95% reliability.

The associations were found both among Asian and Caucasian population.

The researchers concluded that drinking a lot of green tea reduced the chance of getting oral cancer.

Original title:
Association of tea consumption and the risk of oral cancer: A meta-analysis by W W, Yangb Y, [...], Wuc W.

Link:
http://www.sciencedirect.com/science/article/pii/S1368837513008026

Additional information about El Mondo:
Find here more studies on drinking tea.