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Figure 3 Kaplan–Meier event-free survival curves for the composite end point of death or hospitalization for heart failure. Patients with atrial fibrillation (n = 419; solid line) were more likely than those in sinus rhythm (n = 6,098; broken line) to die or be hospitalized for heart failure (log-rank p < 0.001). The number of patients in each group surviving at each 365-day interval is displayed.