Selenium and Coenzyme Q<sub>10</sub> Supplementation and Sex Differences in Cardiovascular Mortality Results from a Prospective Randomized Double-Blind Placebo-Controlled Trial in Elderly People Low in Selenium.

However, after 42 months, a highly significant difference was observed in the female group: a lower level in the active group (active: 56.02 ng/mL; placebo: 67.58 ng/mL; p = 0.002).

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However, even among those with IHD we observed significant effects of the supplementation in the female group and an almost significant effect ( p = 0.06) in the male group, probably due to the limited sample size.

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