Table 2.
Multivariable association between race and risk of stroke (total, ischemic, and hemorrhagic)*, HR (95% CI)
| N=126,018 | White Women | Black Women |
|---|---|---|
| HR (95% CI) | ||
| Total Stroke | ||
| Events (n=4,344) | 3934 | 410 |
| Model 1 | 1.00 | 1.47 (1.33–1.63) |
| Model 2 | 1.00 | 1.35 (1.21–1.50) |
| Model 3 | 1.00 | 1.05 (0.94–1.17) |
| Ischemic Stroke | ||
| Events (n=3,136) | 2852 | 284 |
| Model 1 | 1.00 | 1.41 (1.24–1.59) |
| Model 2 | 1.00 | 1.29 (1.14–1.47) |
| Model 3 | 1.00 | 0.99 (0.87–1.13) |
| Hemorrhagic Stroke | ||
| Events (n=708) | 643 | 65 |
| Model 1 | 1.00 | 1.38 (1.07–1.78) |
| Model 2 | 1.00 | 1.24 (0.95–1.62) |
| Model 3 | 1.00 | 1.10 (0.84–1.45) |
Unknown strokes: n=500 (black women n=439, white women n=61)
p<0.05 indicated in bold
Model 1: Adjusted for age and time-varying effects for enrollment in extended follow-up and stratified by treatment arm.
Model 2: Model 1 and socioeconomic factors (marital/partnership status, highest level of attained education, household income, region of residence, last usual medical care provider visit within last year).
Model 3: Model 2 and stroke risk factors (smoking status, systolic blood pressure, diastolic blood pressure, hypertension status, anti-hypertensive medication, hyperlipidemia medication, diabetes, atrial fibrillation, history of cancer, BMI, hormone therapy use, alcohol consumption, weekly minutes of physical activity, Healthy Eating Index-2005 score and family history of stroke).