Again, there was no longer any significant heterogeneity ( I 2 = 0%, P = 0.44) after removing the study by Jian and the pooled RR changed to 0.977 (95% CI 0.951–1.003, P = 0.080) with borderline significance for all studies.
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Green tea and the risk of prostate cancer: A systematic review and meta-analysis.
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A systematic review and meta-analysis by Zheng et al [ 16 ] published in 2011 suggested that green tea consumption had a borderline significant decrease of PCa risk for Asian populations.