Tea consumption and risk of bladder cancer: a meta-analysis

World Journal of Surgical Oncology

Research

Qiqi Mao¹  Xiangyi Zheng¹  Jie Qin¹  Debo Kong¹  Yiwei Lin¹  Bo Xie² 

[1] Department of Urology, First Affiliated Hospital, Zhejiang University School of Medicine, 310003, Hangzhou, Zhejiang Province, China;Department of Urology, Tongde Hospital of Zhejiang Province, 310003, Hangzhou, Zhejiang Province, China;

关键词: Green tea;    Black tea;    Bladder neoplasms;    Meta-analysis;   

DOI  :  10.1186/1477-7819-10-172

 received in 2012-03-17, accepted in 2012-08-13,  发布年份 2012

来源: Springer

【 摘 要 】

BackgroundTea 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.MethodsEligible studies were retrieved via both computer searches and review of references. The summary relative risk (RR) with 95% confidence interval (CI) was calculated.ResultsTwenty 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.ConclusionsOur findings did not support that tea consumption was related to the decreased risk of bladder cancer.

【 授权许可】

Unknown   
© Qin et al.; licensee BioMed Central Ltd. 2012. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.