Abstract WP224: Trends In Self-reported Stroke And Myocardial Infarction Prevalence And Associated Modifiable Risk Factors Within Race/ethnicity Strata In The United States From 2011-2019

Abstract

Background: Stroke and myocardial infarction (MI) prevalence varies by race/ethnicity, as do the risk factors. Methods: We included biyearly data from the 2011-2019 Behavioral Risk Factor Surveillance System (BRFSS) surveys of adults (age ≥18) in the United States. We describe survey-weighted prevalence of self-reported stroke and MI by race and ethnicity. We also describe the prevalence of modifiable vascular risk factors in patients with stroke and MI. Results: The weighted number of U.S. participants represented in BRFSS surveys increased from 237,404,549 in 2011 to 251,703,709 in 2019. Stroke prevalence increased from 2.9% in 2011 to 3.4% in 2019 (<0.001), while MI prevalence did not change over time (4.3% in 2011; 4.2% in 2019). The prevalence of stroke and MI was highest in American Indian/Alaskan Natives (AI/AN) at 5.6% and 7.5% in 2011 and 2019, respectively, compared to 3.2% and 4.8% for whites (p<0.001). Prevalence trends by race/ethnicity are in Figure 1. Modifiable risk factors are in Tables 1&2, which show that AI/AN consistently have the highest or second highest proportion with ≥4 risk factors. Conclusion: Prevalence of self-reported stroke, but not MI, is increasing in the United States. AI/AN consistently had the highest prevalence from 2011-2019 and the highest overall burden of modifiable vascular risk factors, rendering this group more vulnerable to a recurrent vascular event.