tioxidant vitamin intake and coronary heart disease in men and women using logistic regression analysis" by Todd, Woodward, and Bolton-Smith (1995) reports that in the U.K., coronary heart disease (CHD) is found to be the largest single cause of death for those under the age of 65 years. The study of the association between antioxidant vitamins and the prevention of CHD and other human diseases, is called the antioxidant theory. Evidence shows that people with diets low in these vitamins and with low plasma antioxidant levels are at increased risk of CHD; the principal dietary antioxidants are vitamin C (ascorbate), vitamin E (tocopherols), and carotenoids (precursors to vitamin A). A previous study applied discriminant analysis to antioxidant and other data from the Scottish Heart Health Study. The purpose of this study was to apply logistic regression to the same data for comparison; logistic regression allows the ability to consider interactions.
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