Abstract P081: Are Racial Differences in Cardiovascular Health Factors Explained by Cardiovascular Health Behaviors? The Coronary Artery Risk Development in Young Adults (CARDIA) Study
Background: Cardiovascular health (CVH) is worse among African Americans than whites, yet it is unclear whether differences in health behaviors fully account for these racial disparities. We investigated whether racial differences in CVH factors (blood pressure, glucose, and cholesterol) were explained by body mass index (BMI) and CVH behaviors (smoking and physical activity) in CARDIA.
Methods: This cross-sectional analysis included 2,866 African-American and white CARDIA participants from four field centers (Birmingham, AL; Chicago, IL; Minneapolis, MN; and Oakland, CA) who completed the year 30 examination (2015-2016; 71% retention). We created a summary CVH factor score (range 0-6) using poor, intermediate, and ideal levels of blood pressure, glucose, and cholesterol, with higher scores indicative of better CVH. Linear regression was used to evaluate the association of race with the summary score in unadjusted and adjusted models.
Results: Mean age (SD) was 55 (3.6) years, 57% were women, and 47% were African-American. The mean CVH factor score (SD) was 4.4 (1.2) for whites and 3.9 (1.3) for African Americans (p<0.0001). After adjustment for age and sex, African Americans had a lower CVH factor score than whites (Table). This difference was attenuated but persisted after adjustment for BMI. Findings were further attenuated after taking into account smoking, physical activity, and education.
Conclusion: The racial disparity in CVH factor score persisted after accounting for BMI and CVH behaviors. Thus, roles of other factors, such as social determinants of health and diet, warrant further investigation.
Author Disclosures: A.P. Carson: B. Research Grant; Significant; Has received research support from Amgen, Inc.. D.C. Goff: None. D.R. Jacobs: None. C.I. Kiefe: None. J.M. Shikany: None. S. Sidney: None. K.N. Kershaw: None. N.B. Allen: None. D.M. Lloyd-Jones: None. D. Laddu: None. J.S. Rana: None. K.H. Ingram: None. C.E. Lewis: None.
- © 2017 by American Heart Association, Inc.