Abstract P076: Racial Differences in Maintaining Optimal Healthy Lifestyles Until 50 Years of Age: Prospective Data From the Coronary Artery Risk Development in Young Adults Study
Introduction: Racial disparities in healthy lifestyles may begin in youth and increase over the lifespan.
Hypothesis: Maintaining healthy lifestyles until 50 years of age will be lower in blacks compared with whites.
Methods: The population-based Coronary Artery Risk Development in Young Adults (CARDIA) study enrolled 5115 blacks and whites aged 18-30 years in 1985-1986. Eight exams were completed over 25 years of follow-up. At each exam, optimal lifestyles were defined as body mass index (BMI) < 25 kg/m2, never smoking status, moderate or vigorous physical activity ≥ 150 minutes per week, no or moderate alcohol intake (drinks per week [women / men]: 0-7 / 0-14) and Dietary Approaches to Stop Hypertension (DASH) adherence score ≥ 15. Optimal cardiovascular health (CVH) was defined as having ≥ 4 optimal lifestyles. The age-specific percentage of blacks and whites maintaining optimal lifestyles was calculated using a modified Kaplan Meier method. Hazard ratios (HR) were calculated for maintaining optimal lifestyles over 25 years in blacks compared with whites.
Results: At the baseline exam, 4900 participants (mean age: 26 years; black: 51%) had ≥ 1 optimal lifestyle. By 50 years of age, maintaining BMI < 25 kg/m2, never smoking status, moderate or vigorous physical activity ≥ 150 minutes per week, DASH diet adherence and optimal CVH were lower in blacks versus whites while maintaining no or moderate alcohol intake was higher (Table). The multivariable adjusted HR (95% confidence interval) comparing blacks to whites for maintaining BMI < 25 kg/m2 was 0.57 (0.52-0.63), never smoking status was 0.82 (0.66-1.01), moderate or vigorous physical activity ≥ 150 minutes per week was 0.83 (0.76-0.91), no or moderate alcohol intake was 1.19 (1.03-1.37), DASH diet adherence was 0.71 (0.61-0.82) and optimal CVH was 0.63 (0.56-0.72).
Conclusion: Blacks were less likely to maintain optimal lifestyles until 50 years of age. Reducing racial differences in the maintenance of optimal CVH may help prevent racial disparities in cardiovascular disease.
Author Disclosures: J.N. Booth: B. Research Grant; Significant; 1F31 HL129701-01 (PI: J.N.Booth). N.B. Allen: None. D. Calhoun: None. A.P. Carson: B. Research Grant; Significant; Amgen Inc.. L. Deng: None. D.C. Goff: None. D.T. Redden: None. J.P. Reis: None. D. Shimbo: None. J.M. Shikany: None. S. Sidney: None. B.J. Spring: None. C.E. Lewis: None. P. Muntner: B. Research Grant; Significant; Amgen Inc.
- © 2017 by American Heart Association, Inc.