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Hypertension, Vol 14, 227-234, Copyright © 1989 by American Heart Association

ARTICLES

Impact of race on treatment response and cardiovascular disease among hypertensives

WL Ooi, NS Budner, H Cohen, S Madhavan and MH Alderman
Department of Epidemiology and Social Medicine, Albert Einstein College of Medicine, Bronx, New York 10461.

To determine the effect of race on cardiovascular disease occurrence among treated hypertensive patients, the experience of 1,807 black and 2,962 white hypertensive patients who entered a union/management-- sponsored, worksite-based treatment program (1973-1985), was evaluated. Participants had similar socioeconomic profiles, equal access to health benefits, and received standard treatment. Median duration of observation was 42 months. Blacks had 48, and whites 129, of the 177 morbid (strokes and heart attacks) or mortal cardiovascular disease outcomes. At baseline, blacks had more electrocardiographic abnormalities (32% vs. 19%, p less than 0.0001), lower mean cholesterol (218 vs. 230 mg%, p less than 0.001), smoked more (35% vs. 30%, p less than 0.001), and were less likely to be treated for hypertension before entering the program (53% vs. 58%, p less than 0.01) than whites. They were also more likely than whites to belong to unions employing less skilled workers (p less than 0.0001). Overall, all-cause mortality rates between the races were similar. However, total cardiovascular disease morbidity and mortality rates were 10.5 (whites) and 6.4 (blacks) per 1,000 person years (p less than 0.005); the difference was largely explained by higher myocardial infarction rates among older (55 years or older) white men (15.6 vs. 7.5, p less than 0.05). That advantage was not present amongst younger black persons. In fact, blacks lost more years of life before age 65 (102 vs. 64 years/1,000 persons, p less than 0.025).(ABSTRACT TRUNCATED AT 250 WORDS)

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