Voedingsadvies El MondoResearch Question:
Drinking tea lowers the chances of getting bladder cancer?
Study Design:
This overview article 18 contained 6 cohort studies and case-control studies until March 2012. There was no heterogeneity in the subgroup-analyses and there was also no publication bias. The highest tea consumption was higher than 4 cups a day.
Results and conclusions:
The researchers found that drinking tea the chances of getting bladder cancer non-significant 9% [95% CI = 0.85-1.40, there was heterogeneity between the studies] increased. Non-significant is, there is no link to a 95% reliability.
In the subgroup analyses, the researchers found that drinking tea the chances of getting bladder cancer among smokers significantly with 77% [95% CI = 1.04-3.01] increased. Significant is, there is a link at a 95% reliability.
In the subgroup analyses, the researchers found that drinking tea the chances of getting bladder cancer among non-smoking non-significant with 35% [95% CI = 0.69-2.65] increased.
In the subgroup analyses, the researchers found that drinking black tea the chances of getting bladder cancer among women significantly with 39% [95% CI = 0.38-0.98] reduced. Significant is, there is a link at a 95% reliability.
The researchers found that drinking black tea the chances of getting bladder cancer among men with non-significant 9% [95% CI = 0.71-1.18] reduced.
The researchers concluded that drinking a lot of tea the chances of getting bladder cancer among smokers and drinking lots of black tea increased the chances of getting bladder cancer among women reduced.
Original title:
The association of tea consumption with bladder cancer risk: ameta-analysis by Wu S, Li F, [...], Zhang X.
Link:
http://211.76.170.15/server/APJCN/Volume22/vol22.1/Finished/17_2310_128_137.pdf
Additional information about El Mondo:
Bladder cancer affects approximately four times as many men as women and especially people over sixty years.
For bladder cancer is malignant tumors in the bladder. 90% of bladder cancers originate in the lining wall of the bladder. This is referred to as a urotheelceltumor or overgangsepitheelcarcinoom.