Canadian family physician Médecin de famille canadien
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To assess the variation in bleeding risk estimates and risk stratification among Web and mobile applications for patients with atrial fibrillation. ⋯ Inconsistencies and a lack of precision were observed in annual risk estimates and risk stratification produced by Web and mobile bleeding risk calculators for patients with atrial fibrillation. Clinicians should refer to annual bleeding risks observed in major randomized controlled trials to inform risk estimates communicated to patients.