HLA-G and colorectal carcinoma: CRC patients carrying the +3187 G/G mutated genotype (high-HLA-G secretor) were associated with an increased risk or relapse (HR 2.61, 95% CI 1.24–5.50, P = 0.012 and consistently according to the recessive model (HR 2.46, 95% CI 1.19–5.05, P = 0.015).