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    Blacks Have High Heart Failure Risk

    Study Reveals Racial Gap for Risk of Heart Failure in the Prime of Life
    By
    WebMD Health News
    Reviewed by Louise Chang, MD

    March 18, 2009 -- One in 100 African-Americans will suffer heart failure in the prime of his or her life, a startling new study shows.

    That's 20 times white Americans' risk of heart failure before age 50.

    "Blacks in their 30s and 40s develop heart failure at rates seen in whites in their 50s and 60s," study leader Kirsten Bibbins-Domingo, MD, PhD, of the University of California, San Francisco, tells WebMD.

    Bibbins-Domingo and colleagues followed 5,115 young people -- about half of them African-American, about half of them female -- who underwent regular medical exams over the first 20 years of the ongoing study. Twenty-seven study participants had heart failure at an average age of 39. All but one of them were African-American.

    Study participants were 18 to 30 years old -- most in their early 20s -- when the study began in 1985-1986 in Birmingham, Ala.; Chicago; Minneapolis; and Oakland, Calif.

    "It has been known for some time that blacks have more heart failure and may be slightly younger when they develop heart failure, but ours is the first study to document how high these rates are at younger ages," Bibbins-Domingo says.

    Interestingly, in terms of heart disease risk, whites and African-Americans looked pretty much the same at the start of the study. When participants were in their early 20s, there was little difference in blood pressure or average body weight.

    "So why were only blacks developing heart failure in our study? One possibility is blacks have higher rates of increases in blood pressure and BMI in their 20s. Although at the beginning they were similar to whites, over time the two groups began to look different, with more hypertension and obesity among blacks," Bibbins-Domingo says.

    A telling statistic: Three-fourths of the African-American study participants who suffered heart failure had uncontrolled high blood pressure by age 40.

    Heart Disease Screening, Treatment Lax

    Don't blame the patient, warns Eric D. Peterson, MD, MPH, director of cardiovascular research at Duke University.

    In an editorial accompanying the Bibbins-Domingo report, Peterson notes that African-American patients are less likely than whites to be screened for, get treatment for, or reach treatment goals for high blood pressure, high cholesterol/blood fats, and obesity.

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