Abstract
years. Results: The mean age was 57.9� 13.0 years, 57.4% of patients were female, 49.1% were Black and 37.3% were Hispanic. Blacks were more likely than Hispanics to have an average post-stroke SBP >¼150mm Hg (27% versus 17%). Group 1 (SBP ¼150) had higher risks of mortality (Group 1 HR¼1.26, 95%CI¼1.13-1.41; Group 3H R¼1.29, 95%CI¼1.13-1.48) when compared to Group 2 (SBP 140-150). When controlling for ethnicity, these differences are no longer significant. In stratified analyses, the increased hazard in Group 1 was maintained in the sub-sample of Blacks (HR¼1.47, 95%CI¼1.25-1.72) but not in Hispanics (HR¼0.95, 95%CI¼0.79-1.15). The difference between Group 2 and Group 3 was not significant in either Black or Hispanic sub-samples. Conclusion: Our findings demonstrate that having a post-stroke SBP below 140 mm Hg or above 150 mm Hg significantly increased individuals’ mortality risk, adjusting for demographic factors, comorbidity, number of BP readings, and location of healthcare. Post-stroke BP trajectory differed between Blacks and Hispanics, and had different effects on mortality. These findings have important implications for post-stroke hypertension care.
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