SULT1A1*2 (213His) allele has been associated with an increased risk of prostate cancer (OR = 1.60, 95% CI = 0.46–5.62) (Nowell et al., 2004), stomach cancer (OR = 3.32; 95% CI = 1.17–9.45) (Liang et al., 2004; Boccia et al., 2005), urothelial cancer (OR = 2.18, 95% CI = 1.28–3.69) (Roupret et al., 2007), and breast cancer (OR = 1.12, 95% CI = 1.02–1.24). This evidence concerns the gene SULT1A1 and gastric cancer.