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From July 28, 2011, to December 30, 2016, the enrollment period of EAST‐AFNET 4 (Early Treatment of Atrial Fibrillation for Stroke Prevention Trial), we identified 109 739 patients with newly diagnosed atrial fibrillation (AF) (overall cohort). The majority of patients (72.9%; 79 948 of 109 739) would have been eligible for EAST‐AFNET 4. AAD indicates antiarrhythmic drug.
