CHA₂DS₂-VASc scoring

	Risk factors	Points
C	Congestive heart failure or left ventricular systolic dysfunction	1
H	Hypertension	1
A2	Age ≥75 years	2
D	Diabetes mellitus	1
S2	History of Stroke, transient ischemic attack, or thromboembolism	2
V	Vascular disease, including peripheral artery disease, myocardial infarction, or aortic plaque	1
A	Age 65–74	1
Sc	Sex category (female)	1

Source: Lip GY, Nieuwlaat R, Pisters R, Lane DA, Crijns HJ. Refi ning clinical risk stratifi cation for predicting stroke and thromboembolism in atrial fibrillation using a novel risk factor-based approach: the Euro Heart Survey on Atrial Fibrillation. Chest. 2010;137(2):263-272. Used with permission.