Comparison of platelet counts between patient groups; disease-free survival in infected patients. (A) Platelet (PLT) count of H pylori–positive patients with ITP, both responders and nonresponders to eradication, and H pylori–negative patients with ITP, at baseline. Black lines represent the median platelet value. ● represents single patient platelet values. (B) Platelet (PLT) count of H pylori–positive patients with ITP, both responders and nonresponders to eradication, and H pylori–negative patients with ITP, at 6 months. Black lines represent the median platelet value. ● represents single patient platelet values. (C) Disease-free survival analysis of H pylori–positive patients measured by the Kaplan-Meier method. A total of 55 percent of patients are disease free both at 7 and 60 months (95% CI = 38.3-69.3).