Abstract
Most prior studies of cardiovascular (CVD) events have focused on incident events. We analyzed differences by race/ethnicity in incident and recurrent CVD events in the Multi-Ethnic Study of Atherosclerosis from baseline in 2000-2002 through 2019 using joint and multivariable adjusted Cox proportional hazards modeling. Among 6,814 men and women aged 45-85 years without known CVD at enrollment, during median follow up of 17.7 years, 1206 incident and 695 recurrent CVD events were observed; 891 individuals with a non-fatal incident event were at risk for recurrent events. Rates of combined incident and recurrent CVD events among Black, White, Chinese, and Hispanic participants were 16.8, 18.6, 13.3, and 19.3 per 1000 person-years, respectively. First recurrent CVD event rates in Black, White, Chinese, and Hispanic participants were 87.7, 68.7, 78.1, and 80.7 per 1000 person-years, respectively. Revascularization rates were lower in Black versus White participants (3.8 vs 6.4 per 1000 person-years, p<0.0001). Adjusted hazard for CVD mortality was higher for Black vs. White participants (hazard ratio 1.85; 95% CI: 1.03, 3.29). In this multi-ethnic cohort, Black participants had a lower or similar rate of incident and recurrent CVD events, lower rate of revascularization, and higher rate of fatal CVD compared to White participants.
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