Long-term outcomes following a hospitalization for atrial fibrillation or flutter. (A) Cumulative incidence of mortality following a hospitalization for atrial fibrillation or flutter. (B) Cumulative incidence of hospitalizations for other cardiovascular events. (C) Cumulative incidence of re-hospitalizations for AF or flutter, catheter ablation of AF, and cardioversion. AF, atrial fibrillation; AMI, acute myocardial infarction; CI, confidence interval; TIA, transient ischaemic attack