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C-statistic of CHA2DS2-VASc for 1-Year Prediction of Ischemic Stroke or TIA Among Atrial Fibrillation Patients, Optum Clinformatics, 2009–2015
| C-statistic | 95% CI | |
|---|---|---|
| CHA2DS2-VASc score | 0.679 | 0.670, 0.686 |
| CHA2DS2-VASc score + race/ethnicity | 0.679 | 0.671, 0.688 |
| CHA2DS2-VASc score in models stratified by race/ethnicity | ||
| Whites | 0.678 | 0.669, 0.688 |
| Blacks | 0.682 | 0.658, 0.706 |
| Hispanics | 0.649 | 0.620, 0.679 |
CI, confidence interval
