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  • Title: Racial differences in arterial stiffness among adolescents and young adults with type 2 diabetes.
    Author: Shah AS, Dolan LM, Gao Z, Kimball TR, Urbina EM.
    Journal: Pediatr Diabetes; 2012 Mar; 13(2):170-5. PubMed ID: 21790919.
    Abstract:
    BACKGROUND: African-American adults demonstrate a higher prevalence of cardiovascular complications including myocardial infarction and stroke. Whether similar racial disparities are present to suggest African-Americans adolescents are at higher risk to develop cardiovascular disease is not known. Thus, we compared arterial stiffness, an early marker of cardiovascular disease, in African-American and Caucasian adolescents and young adults with type 2 diabetes. METHODS: Demographic, anthropometric, laboratory data, and arterial stiffness measures including pulse wave velocity (PWV) and augmentation index (AIx) were collected in a cross-sectional study of 215 adolescents (average age 18 yr) with type 2 diabetes (55% African-American and 65% female). RESULTS: Compared to Caucasians, African-Americans had increased PWV (6.21 ± 0.87 vs. 6.96 ± 1.30, p < .01) and AIx (4.44 ± 11.17 vs. 7.64 ± 12.02, p = 0.05). Regression modeling demonstrated age, lipids, blood pressure, and duration of diabetes were differently associated with arterial stiffness in each race group (p < 0.05). CONCLUSIONS: African-American adolescents and young adults with type 2 diabetes have increased vascular stiffness than age-matched Caucasians. This process is mediated by different cardiovascular risk factors. These results suggest race-specific risk factor modification may be helpful to prevent early cardiovascular disease in this high risk population.
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