Table 1.

(A) CHA2DS2-VASc score used to evaluate the risk of thromboembolic phenomena in patients with atrial fibrillation. (B) Adjusted annual event rate by score

[A]
CHA2DS2-VASc	Score
Congestive heart failure/left ventricular dysfunction	1
Hypertension	1
Age ≥ 75 years	2
Diabetes mellitus	1
Stroke/transient ischemic attack/thromboembolism	2
Vascular disease (prior myocardial infarction, peripheral artery disease or aortic plaque)	1
Age 65–74 years	1
Sex category (i.e. female gender)	1
[B]
Escore	Adjusted stroke rate (%/year)*
0	0.0
1	1.3
2	2.2
3	3.2
4	4.0
5	6.7
6	9.8
7	9.6
8	6.7
9	15.2