Abstract TP38: Gender Disparities In Ischemic Stroke Thrombolytic Treatment In Nebraska Hospitals

Abstract

Introduction: Mission: Lifeline Stroke Nebraska was a 4-year program to enhance stroke systems of care in Nebraska. With 68% of hospitals in Nebraska participating in GWTG-Stroke, analysis of stroke treatment data can be accomplished on disparities across the state. Methods: De-identified data was accessed through AHA GWTG-Stroke registry to assess stroke outcomes of patients at 49 participating NE hospitals in 2020. Data were analyzed based on AHA specified Mission: Lifeline reporting, achievement, and pre-hospital measures. The purpose of analysis was to describe patient characteristics and determine differences in IV thrombolytic treatment and mean patient NIH stroke score (NIHSS) upon admission. Percentages and counts were reported for categorical variables. The mean, standard deviation (SD) and median were reported for continuous variables. The Kruskal-Wallis rank sum, Wilcoxon sign rank, T-tests, chi-square and one-way ANOVA tests were used, where appropriate, to assess differences in stroke outcomes by age, gender, and race/ethnicity. Results: Of the 3,952 patient encounters registered in GWTG-Stroke from 01/01/2020 to 12/31/20, 2670 (67.5 %) were patients 18+ at time of admission with clinical diagnosis of ischemic stroke. Statistically significant differences in age, NIHSS at admission, and treatment with thrombolytics by gender were observed. Compared to males, females were older (72.7 vs. 68.1 years), had a lower mean NIHSS at admission (5.8 vs. 6.0), and a smaller proportion of females received thrombolytic treatment (42% vs. 58%). Conclusions: Overall, females were less likely to receive IV thrombolytic treatment compared to males. Women in the study were older with lower NIHSS than males. Results from this analysis align with those from the study “The Impact of Sex and Gender on Stroke” (Rexrode, et al.,2022) indicating that females may present different signs of a stroke than males. Our data showed the NIHSS scores to be lower for females possibly leading to lower frequency of treatment. As a part of the Mission: Lifeline initiative, this information was shared with hospitals and providers across the state. These results led to public awareness and education targeted to women, including a local podcast and social media.