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Percentage of patients with antral gastritis (AG; n = 52), diffuse gastritis (DG; n = 41), peptic ulcer (PU; n = 41), or duodenitis (DU; n = 33), after dividing the infecting Helicobacter pylori strains into group A (cagA−, s2, m2, babA2−), group B (cagA+, s1m1, babA2+), group C (cagA+, s1m2, babA2+), and group D (cagA+, s1m2, babA2−).
