Reciprocal impact of host factors and Helicobacter pylori genotypes on gastric diseases

Figure 1 Gastric disease cases are more prevalent in patients > 40 years of age. The percentages of the 233 Helicobacter pylori-positive patients are plotted according to disease diagnosis (CG: Chronic gastritis: GU: Gastric ulcer; and DU: Duodenal ulcer), age (< 40 years and > 40 years), and sex (male: White bars; female: Shaded bars).

Figure 2 Distribution of Helicobacter pylori genotypes according to sex. vacA s1m2 cagA⁺ was the most common genotype in both males (dark bars) and females (light bars) of all three gastric diseases. CG: Chronic gastritis; GU: Gastric ulcer; DU: Duodenal ulcer.