Meta-analysis of the relation between the VDR gene TaqIpolymorphism and genetic susceptibility to prostate cancer in Asian populations.

BACKGROUND: Polymorphisms of the Taq I gene have been associated with prostate cancer risk. METHODS: We applied a fixed-effects model to combine odds ratios (ORs) and 95% confidence intervals (95% CI). The Egger's test was carried out to evaluate potential publication bias. RESULTS: A total of 10 case-control studies enrolling 1,141 prostate cancer patients and 1,685 controls were included in this meta-analysis. Compared with the T allele, the OR for the C allele was 0.81 (0.70-0.94). The ORs for CT and CC+CT genotypes were 0.86 (0.74-1.01) and 0.84 (0.73-0.97) compared to wide type genotype (homozygote TT). CONCLUSIONS: The present meta-analysis suggests that the TF gene Taq I polymorphism may reduce the prostate cancer risk in Asian populations.