饮茶与膀胱癌风险：一项荟萃分析。
Tea consumption and risk of bladder cancer: a meta-analysis.
机构信息
Department of Urology, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, Zhejiang Province, China.
出版信息
World J Surg Oncol. 2012 Aug 25;10:172. doi: 10.1186/1477-7819-10-172.
BACKGROUND
Tea consumption has been reported to be associated with an decreased risk of several types of cancers. However, the results based on epidemiological studies on the association of tea consumption with bladder cancer were inconsistent. This meta-analysis was undertaken to evaluate the relationship between tea consumption and bladder cancer risk.
METHODS
Eligible studies were retrieved via both computer searches and review of references. The summary relative risk (RR) with 95% confidence interval (CI) was calculated.
RESULTS
Twenty three studies met the inclusion criteria of the meta-analysis. No association with bladder cancer was observed in either overall tea consumption group (OR =0.94, 95% CI 0.85-1.04) or subgroups stratified by sex, study design, geographical region or tea types.
CONCLUSIONS
Our findings did not support that tea consumption was related to the decreased risk of bladder cancer.
背景
饮茶与多种类型的癌症风险降低有关。然而，基于流行病学研究的结果并不一致。本荟萃分析旨在评估饮茶与膀胱癌风险之间的关系。
方法
通过计算机检索和参考文献复习，检索到符合条件的研究。计算了汇总相对风险（RR）和 95%置信区间（CI）。
结果
23 项研究符合荟萃分析的纳入标准。总体饮茶组（OR=0.94，95%CI 0.85-1.04）或按性别、研究设计、地理位置或茶类分层的亚组均未观察到与膀胱癌有关。
结论
我们的研究结果不支持饮茶与膀胱癌风险降低有关。
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