Intake of specific flavonoid classes and coronary heart disease-a case-control study in Greece.

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    • Abstract:
      OBJECTIVE:: Dietary intake of flavonoids has been reported to protect against coronary heart disease (CHD) risk, but associations of specific classes of flavonoids with CHD have not been adequately studied. DESIGN:: Hospital-based case-control study relying on interviewer administered questionnaires. SETTING:: Cardiology Department of the University of Athens Medical School in the Hippokrateion General Hospital (1990-1991). SUBJECTS:: Cases were 329 patients with electrocardiographically confirmed first coronary infarct or a first positive coronary arteriogram, or both (participation fraction 93%). Controls were 570 patients admitted to the same hospital for minor conditions unrelated to nutrition (participation fraction 95%). All cases and controls were interviewed in the hospital wards by experienced interviewers, and a 110-item food frequency questionnaire was administered. RESULTS:: There was statistically significant evidence (P~0.03) for an inverse association between intake of flavan-3-ols and CHD risk, an increase of about 21?mg per day corresponding to a 24%decrease in CHD risk. The inverse association between flavan-3-ols and CHD risk was largely accounted for by the intake of wine and to a lesser extent tea. For none of the other flavonoid classes was there statistically significant evidence of an association. CONCLUSION:: Flavan-3-ols, which are largely found in wine and tea, are inversely associated with, and may be protective against, coronary heart disease.European Journal of Clinical Nutrition (2004) 58, 1643-1648. doi:10.1038/sj.ejcn.1602022 Published online 30 June 2004 [ABSTRACT FROM AUTHOR]
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