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Mortality outcomes of patients in 6 year follow up are shown for (A) unadjusted overall data and (B) adjusted matched data. Mortality risk was similar between groups in the adjusted group, p= 0.303. Landmark Analysis results for patients surviving past 2 years are shown for unmatched data in panel (C) and matched data in panel (D). Patients who had surgical ablation of atrial fibrillation had a lower risk of death, p=0.0358.
