Abstract P877: Race-Ethnic Disparities in Intracerebral Hemorrhage Outcomes

Abstract

Introduction: Prior literature has reported differences in outcomes following stroke by race/ethnicity. While more attention has been focused on ischemic stroke, we sought to identify race/ethnic disparities in hospital outcomes at discharge following intracerebral hemorrhage (ICH). Methods: Data were obtained from the Florida Stroke Registry (FSR) consisting of stroke centers utilizing the Get With the Guidelines-Stroke (GWTG-S) tool. Pearson Chi-square and Kruskall-Wallis tests were used to compare descriptive statistics by race/ethnicity on 26,113 Florida cases with ICH discharged 2010-2018. Outcomes at discharge included in-hospital mortality, disposition, ambulation, modified Rankin Scale score & timing of initiation of comfort measures only (CMO). Generalized estimating equations logistic models accounted for age, sex, insurance, smoking, hypertension, diabetes, dyslipidemia, prior anti-coagulant/platelet use, history of stroke/TIA, admission NIHSS, ICH score, arrival mode, hospital size, teaching status & years in GWTG-S. Results: 65% were non-Hispanic White (NHW), 20% non-Hispanic Black (NHB) and 15% Hispanic. NHB were younger at ICH onset (median 60, IQR 52-71; NHW: 71, 58-81; Hispanic: 69, 52-80; p < 0.0001), had higher risk of hypertension (HTN; 74%; NHW: 66%; Hispanic: 64%; p < 0.0001), diabetes (29%; NHW: 20%; Hispanic: 27%; p < 0.0001), smoking (14%; NHW: 12%; Hispanic: 9%; p < 0.0001) and chronic renal insufficiency (8%; NHW: 4%; Hispanic: 4% ; p < 0.0001). NHW had higher risk of dyslipidemia (35%; NHB: 21%; Hispanic: 27%; p < 0.0001), atrial fibrillation/flutter (20%; NHB: 6%; Hispanic: 10%; p < 0.0001) and a higher use of prior anticoagulants (13%; NHB: 6%, Hispanic: 8%, p < 0.0001). NHB had lower odds of in-hospital mortality (adjusted OR=0.77, 95% CI=[0.61-0.96]) and CMO on days 0/1 (0.63, 0.45-0.87) compared to NHW. Conclusions: Differences in risk factor profiles, such as higher rates of HTN in NHB and greater use of anticoagulants among NHW, raises the possibility of tailoring preventive and acute care responses to ICH by race/ethnicity. Moreover, despite observing persistently lower odds of mortality and CMO among NHB after adjustment, more data are needed to identify the unobserved effects leading to these disparities.