Homozygous variant carriers of XPC Lys939Gln were at high risk of CRC by the intake of red meat compared to the homozygous wild-type carriers (reference) [IRR = 3.78 (1.70–8.04) and 1.17 (0.71–1.92] per 100 g of red meat per day, respectively, Pint = 0.01) (Hansen et al. 2007). This evidence concerns the gene XPC and colorectal carcinoma.