Effect of Adherence to Oral Anticoagulants on Risk of Stroke and Major Bleeding Among Patients With Atrial Fibrillation Arrhythmia and Electrophysiology

Background In comparison to warfarin, non–vitamin K antagonist oral anticoagulants (NOACs) have the advantages of ease of dosing, fewer drug interactions, and lack of need for ongoing monitoring. We sought to evaluate whether these advantages translate to improved adherence and whether adherence is associated with improved outcomes in patients with atrial fibrillation. Methods and Results We performed a retrospective cohort analysis by using a large US commercial insurance database to identify 64 661 patients with atrial fibrillation who initiated warfarin, dabigatran, rivaroxaban, or apixaban treatment between November 1, 2010, and December 31, 2014. During a median of 1.1 y of follow-up, 47.5% of NOAC patients had a proportion of days covered of ≥80%, compared with 40.2% in warfarin patients (P
Source: JAHA:Journal of the American Heart Association - Category: Cardiology Authors: Tags: Arrhythmias, Atrial Fibrillation, Secondary Prevention, Intracranial Hemorrhage, Ischemic Stroke Arrhythmia and Electrophysiology Source Type: research

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