Table 2.
Incidence and Hazard Ratios of Ischemic Stroke or TIA Among Atrial Fibrillation Patients, Stratified by Race/Ethnicity, Optum Clinformatics, 2009–2015
| All | Whites | Blacks | Hispanics | |
|---|---|---|---|---|
| Ischemic stroke or TIA, N | 6,202 | 5,069 | 617 | 516 |
| Person-years | 489,453 | 415,308 | 37,398 | 36,747 |
| Incidence rate* | 1.27 (1.24, 1.30) | 1.22 (1.19, 1.25) | 1.65 (1.52, 1.78) | 1.40 (1.29, 1.53) |
|
| ||||
| Unadjusted hazard ratio (95% CI) | - | Referent | 1.33 (1.22, 1.44) | 1.16 (1.06, 1.26) |
|
| ||||
| Adjusted hazard ratio (95% CI)† | - | Referent | 1.31 (1.19, 1.43) | 1.06 (0.96, 1.17) |
|
| ||||
|
| ||||
| Ischemic stroke, N | 5,045 | 4,104 | 519 | 422 |
| Person-years | 491,416 | 416,975 | 37,543 | 36,897 |
| Incidence rate* | 1.03 (1.00, 1.06) | 0.98 (0.95, 1.01) | 1.38 (1.27, 1.51) | 1.14 (1.04, 1.26) |
|
| ||||
| Unadjusted hazard ratio (95% CI) | - | Referent | 1.38 (1.26, 1.51) | 1.17 (1.06, 1.29) |
|
| ||||
| Adjusted hazard ratio (95% CI)† | - | Referent | 1.38 (1.25, 1.53) | 1.09 (0.98, 1.22) |
*
Per 100 person-years (95% confidence interval)
†
Adjusted for CHA2DS2-VASc variables: congestive heart failure, hypertension, age, diabetes mellitus, stroke or TIA, complicated vascular disease (myocardial infarction or peripheral arterial disease), sex category, income, and educational level