Table 2.
Predictive value of the CHADS2 and CHA2DS2‐VASc scores compared with the modified scores taking the NIHSS score at baseline into account
| Stroke recurrence | Death | Disability | ||||
|---|---|---|---|---|---|---|
| C statistic | OR (95% CI)* | C statistic | OR (95% CI)* | C statistic | OR (95% CI)a | |
| Original scores | ||||||
| CHADS2 | 0.53 | 1.15 (1.01–1.32) | 0.53 | 1.12 (0.99–1.28) | 0.54 | 1.20 (1.02–1.40) |
| CHA2DS2‐VASc | 0.55 | 1.14 (1.05–1.24) | 0.57 | 1.20 (1.11–1.31) | 0.59 | 1.28 (1.16–1.41) |
| Modified scores | ||||||
| CHADS2N | 0.58 | 1.25 (1.14–1.37) | 0.69 | 1.81 (1.64–2.01) | 0.67 | 1.84 (1.60–2.12) |
| CHA2DS2‐VAScN | 0.58 | 1.19 (1.11–1.27) | 0.69 | 1.53 (1.42–1.65) | 0.68 | 1.58 (1.43–1.74) |
NIHSS, the National Institutes of Health Stroke Scale, OR, odds ratio, CI, confidence interval, CHADS2N, adding NIHSS into CHADS2, CHA2DS2‐VAScN, adding NIHSS into CHA2DS2‐VASc.
a
OR means odds of getting the event increased with each extra point of the score.