XRCC3 and urinary bladder cancer: XRCC3 rs861530 CT genotype showed a decreased risk compared to TT genotype (P = 0.002, adjusted OR = 0.48, 95% CI: 0.30–0.78), and this SNP was associated with an increased risk under recessive model (CC vs. TT + CT, P = 0.001, adjusted OR = 2.19, 95% CI: 1.35–3.55) of bladder cancer.