Family-based Helicobacter pylori infection status and transmission pattern in central China, and its clinical implications for related disease prevention

Figure 3 Helicobacter pylori infection status between 244 couples. Values above each column are the case number and percentages of each group. A: Helicobacter pylori (H. pylori) infection status of 244 couples; B: Type I and II H. pylori genotype status of the 117 couples with 1 spouse infected; C: H. pylori genotype and sex of 117 couples with 1 spouse infected; D: H. pylori genotype status in 85 couples with both spouses infected; E: Relationship between infection and marriage duration in 244 couples. The dashed line across the figure is the trendline of both spouses infected, r = 0.98. Non-infected: All members in a couple were not infected; one spouse infected: Only 1 in a couple was infected; Type I H. pylori: H. pylori infection with type I strains; Type II H. pylori: H. pylori infection with type II strains; Mixed infection: H. pylori infection with type I and type II strains.