HAS-BLED score for bleeding risk on oral anticoagulation in atrial fibrillation
Hypertension (systolic ≥ 160mmHg)
Abnormal renal function
Abnormal liver function
Age ≥ 65 years
Stroke in past
Medication usage predisposing to bleeding (for example, NSAIDs)
Labile INRs
Taking other drugs as well
Alcohol intake (> 8 units per week)
Results
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Reference: Pisters R, Lane DA, Nieuwlaat R, de Vos CB, Crijns HJ, Lip GY.A novel user-friendly score (HAS-BLED) to assess 1-year risk of major bleeding in patients with atrial fibrillation: the Euro Heart Survey. Chest. 2010 Nov;138(5):1093-100