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

World Journal of Surgical Oncology

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

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

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

Others  :  827363
DOI  :  10.1186/1477-7819-10-172

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

【 摘 要 】

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.

【 授权许可】

   
2012 Qin et al.; licensee BioMed Central Ltd.

【 图 表 】

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