Cost effectiveness of warfarin versus aspirin in patients older than 75 years with atrial fibrillation.
BACKGROUND AND PURPOSE: Oral anticoagulants are effective at reducing stroke compared with aspirin in atrial fibrillation patients older than 75 years. Although the benefits of reduced stroke risk outweigh the risks of bleeding, the cost effectiveness of warfarin in this patient population has not yet been established. METHODS: An economic evaluation was conducted alongside a randomized, controlled trial; 973 patients ≥75 years of age with atrial fibrillation were recruited from primary care...Expand abstract
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