Performance of the HEMORR2HAGES, ATRIA, and HAS-BLED Bleeding Risk-Prediction Scores in Patients With Atrial Fibrillation Undergoing Anticoagulation: The AMADEUS (Evaluating the Use of SR34006 Compared to Warfarin or Acenocoumarol in Patients With Atrial Fibrillation) Study

Study Questions:

What is the relative predictive value of three validated risk estimation tools derived in cohorts of atrial fibrillation patients to predict bleeding risk associated with anticoagulation?