S100A8 and gastric cancer: It is likely that the prevalence of some of these variants could explain why the gastric cancer incidence rates of male and female Mexican patients (9.4 and 6.7/100,000, respectively) are similar to those reported in Southeastern Asian countries (10.2 and 4.7/100,000 in men and women, respectively) [55], despite the differences in the cagA-positive H. pylori prevalence (90–95% in Japan, Korea, and China; 50–60% in Mexico).