NQO1 and colorectal cancer: In another study by Wang et al. a relationship was observed between the 609C > T polymorphism of the NQO1 gene and the risk for developing colorectal cancer in different variants: CT (OR = 1.28, 95% CI = 1.08–1.51, p = 0.005); TT/CC: (OR = 1.60, 95% CI = 1.10–2.33, p = 0.015); TT/CT as compared to CC: (OR = 1.36, 95% CI = 1.09–1.69, p = 0.006); TT as compared to CT/CC (OR = 1.37, 95% CI = 1.05–1.80, p = 0.022) [16].