Abstract 15400: Association of Cardiovascular Health With Early Carotid Artery Changes in Young Adults From Disadvantaged Social Backgrounds: The Future of Families and Child Wellbeing Study (FFCWS)

Abstract

Introduction: Associations of cardiovascular health (CVH), as measured by the AHA’s Life’s Essential 8 (LE8) score, with early markers of arterial injury have not been described in young adults. Methods: The FFCWS enrolled 4898 mother-baby dyads at delivery in 20 US cities in 1998-2000, oversampling mothers who were unmarried, including a disproportionate number of minority and low-income families. In 2021-23, offspring were invited to attend an in-person exam to measure CVH and perform carotid artery ultrasound. Individual CVH metric and overall LE8 scores (except sleep) were calculated for each participant (ppt). Carotid imaging was performed by 2 trained sonographers and images were analyzed by a core lab. We examined cross-sectional associations of LE8 scores with measures of carotid intima-media thickness (IMT), gray scale (a measure of early arterial injury), and distensibility, using linear regression. Results: Among 1211 offspring ppts, mean age was 22y, >50% self-identified as female, and >75% as Black or Hispanic. Black and Hispanic ppts had lower, and ppts from Other racial/ethnic groups had higher, overall LE8 scores compared with White ppts (all P≤0.01; Table 1A). In unadjusted analyses, Black ppts had thicker carotid IMT and lower Young’s elastic modulus measures. Prevalence of diagnostic plaque was low. In analyses adjusted for age, sex, and race/ethnicity (Table 1B), LE8 scores were significantly associated with lower carotid IMT, higher gray scale median, and lower Young’s elastic modulus. For example, for each 10 point higher (better) LE8 score, mean-maximal carotid IMT was lower by 0.008 mm. Conclusions: Among young adults largely from disadvantaged social backgrounds, the LE8 score was associated with early measures of carotid arterial injury. LE8 may be an important surrogate measure for monitoring long-term CVH and may help identify young adults with emerging subclinical disease and higher long-term cardiovascular risk.