CHADS-VASc & HAS-BLED

CHA₂DS₂-VASc

0 / 9

HAS-BLED

0 / 9

No anticoagulation on score alone

Age

Sex

Congestive heart failureSigns/symptoms of heart failure, or objective LV dysfunction+1HypertensionOr on treatment+1Diabetes mellitus+1Stroke, TIA, or thromboembolismPrior history+2Vascular diseasePrior MI, peripheral artery disease, or aortic plaque+1

Age bands score 1 (65–74) or 2 (≥ 75) and are mutually exclusive. Female sex adds a point but is a risk modifier rather than a standalone indication — a woman with no other risk factors scores 1 and is not in the anticoagulation band.

Source

CHA₂DS₂-VASc: Lip GY, Nieuwlaat R, Pisters R, Lane DA, Crijns HJ. Chest. 2010;137(2):263–272. HAS-BLED: Pisters R, Lane DA, Nieuwlaat R, et al. Chest. 2010;138(5):1093–1100.