Objectives: The purpose of this study was to develop a risk stratification score to predict
warfarin-associated hemorrhage. Background: Optimal decision making regarding warfarin
use for atrial fibrillation requires estimation of hemorrhage risk. Methods: We followed up
9,186 patients with atrial fibrillation contributing 32,888 person-years of follow-up on
warfarin, obtaining data from clinical databases and validating hemorrhage events using
medical record review. We used Cox regression models to develop a hemorrhage risk …

A new risk scheme to predict warfarin-associated hemorrhage : The ATRIA (Anticoagulation
and Risk Factors in Atrial Fibrillation) Study | CiNii Research … A new risk scheme to
predict warfarin-associated hemorrhage : The ATRIA (Anticoagulation and Risk Factors in
Atrial Fibrillation) Study …