Different risk factors influence peptic ulcer disease development in a Brazilian population

Figure 1 Incidence of chronic gastritis, duodenal ulcer and gastric ulcer disease and distribution of the investigated independent variables. A: Incidence of gastric diseases in patients who underwent endoscopy (n = 1466); B: Distribution of the histopathological parameters of atrophy (n = 1020); C: Intestinal metaplasia (n = 1094); D: Positive histological diagnosis of Helicobacter pylori (H. pylori) (n = 1045); E: H. pylori vacA m1 genotypes (n = 668); F: H. pylori vacA m2 genotypes (n = 668). CG: Chronic gastritis; DU: Duodenal ulcer; GU: Gastric ulcer; vacA: Vacuolating cytotoxin A. Values outside circles are negative tests.