Anticoagulation for Atrial Fibrillation: Is This the End of Warfarin? Not Just Yet

Table 2

Using the CHA₂DS₂-VASc score, an annual adjusted risk score for stroke can be estimated, and the benefits of anticoagulation can be considered.

CHA2DS2-VASc score	Risk (annual adjusted risk)
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%