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Use of dietary supplements among United States adults with coronary artery disease and atherosclerotic risks.

Buettner C, Phillips RS, Davis RB, Gardiner P, Mittleman MA

Division for Research and Education in Complementary and Integrative Medical Therapies, Harvard Medical School, Boston, Massachusetts, USA. cbuettne@bidmc.harvard.edu

The study seeks to describe the use of dietary supplements promoted for cardiovascular health and the relation between supplement use and coronary artery disease (CAD) and the presence of major CAD risk factors. The aim is also to explore whether use of medications for the treatment of cardiovascular disease or diabetes mellitus (DM) is associated with supplement use. We performed a cross-sectional analysis of the 1999 to 2002 National Health and Nutrition Examination Survey (NHANES) of 6,671 adults (representing 119.3 million US adults) aged > or =40 years. We categorized adults into 4 nonoverlapping groups as (1) having reported CAD or stroke (CAD/stroke), (2) DM without CAD/stroke, (3) hypertension (HTN) or hypercholesterolemia (HC) without CAD/stroke or DM (HTN/HC), or (4) none of these conditions (no reported CAD/CAD risk) and performed weighted (NHANES) multiple logistic regression to determine the odds of using supplements (reference group, no reported CAD/CAD risk). After controlling for sociodemographics, health, and lifestyle factors, we found that persons with CAD/Stroke used more supplements (any), vitamin E, folic acid, and niacin, and less fish oil. Those with DM used less coenzyme Q10, and adults with HTN/HC used more supplements (any), herbs (any), and ginseng. Adults with CAD/stroke who used medications for the treatment of cardiovascular disease or DM were more likely to use folic acid compared with those who did not use medications for these conditions. In adults with CAD/stroke, DM, or HTN/HC, those who did not use medications for these conditions were more likely to use herbs and other select supplements. In conclusion, use of dietary supplements is common in those with CAD or CAD risks.

Published 23 February 2007 in Am J Cardiol, 99(5): 661-6.
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