Table 2.
CHADS2 and CHA2DS2VASc scores
| Patients | CHADS2 | CHA2DS2VASc | ||
|---|---|---|---|---|
| score | Stroke risk 100 patients/year (95%CI) | score | Stroke risk 100 patients/year (95%CI) | |
| 1 | 4 | 8.5 (6.3 - 8.1) | 6 | 3.6 (0.4 - 12.6) |
| 2 | 5 | 12.5 (8.2 - 17.5) | 8 | 11.1 (0.3 - 48.3) |
| 3 | 4 | 8.5 (6.3 - 8.1) | 6 | 3.6 (0.4 - 12.6) |
| 4 | 5 | 12.5 (8.2 - 17.5) | 7 | 8.0 (1.0 - 26.0) |
| 5 | 2 | 4.0 (3.1 - 5.1) | 3 | 3.9 (1.7 - 7.3) |
| 6 | 2 | 4.0 (3.1 - 5.1) | 4 | 1.9 (0.5 - 4.9) |
| 7 | 4 | 8.5 (6.3 - 8.1) | 5 | 3.2 (0.7 - 9.0) |
| 8 | 5 | 12.5 (8.2 - 17.5) | 7 | 8.0 (1.0 - 26.0) |
| 9 | 4 | 8.5 (6.3 - 8.1) | 5 | 3.2 (0.7 - 9.0) |
| 10 | 5 | 12.5 (8.2 - 17.5) | 6 | 3.6 (0.4 - 12.6) |
| 11 | 2 | 4.0 (3.1 - 5.1) | 3 | 3.9 (1.7 - 7.3) |
| 12 | 2 | 4.0 (3.1 - 5.1) | 4 | 1.9 (0.5 - 4.9) |
| 13 | 3 | 5.9 (4.6 - 7.3) | 4 | 1.9 (0.5 - 4.9) |
| 14 | 2 | 4.0 (3.1 - 5.1) | 3 | 3.9 (1.7 - 7.3) |
| 15 | 2 | 4.0 (3.1 - 5.1) | 2 | 1.6 (0.3 - 4.7) |