Estimates stroke risk in patients with atrial fibrillation. The adjusted stroke rate was the expected stroke rate per 100 person-years derived from the multivariable model assuming that aspirin was not taken.
Therapies recommended by the AFib Clinical Guide are as follows:
| CHADS2VASC Score | Recommended Therapy |
|---|---|
| 0 | Aspirin (81-325 mg po daily) |
| 1 | Aspirin (81-325 mg po daily) or warfarin (INR 2-3, target 2.5) |
| ≥2 | Warfarin (INR 2-3, target 2.5) |