In elderly subjects, the association between OSA and MetS was stronger for hyperglycemia and hypertension. Among factors explaining this association, hypoxemia appears to be the most important factor without any effect of indices of sleep fragmentation, sleep duration, and sleepiness.
Among metabolic syndrome components, waist circumference showed the strongest association with the high-CRP tertile in elderly subjects. These findings help to explain the strong association between waist circumference and cardiovascular morbidity.
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