Trends in anticoagulation for atrial fibrillation in the U.S.: an analysis of the national ambulatory medical care survey database.

Objectives: The purpose of this study was to track trends in the use of anticoagulation for atrial fibrillation (AF) over the past decade and identify predictors of use.

Background: Atrial fibrillation is common and associated with significant morbidity. Previous studies suggest underuse of anticoagulant therapy in patients with AF.