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0868 Sleep Duration and Excess Heart Age among U.S. Adults

2018, Sleep

Abstract

Introduction: Insufficient sleep negatively impacts the cardiovascular system. Studies have also shown associations between sleep duration and several CVD risk factors. No study has examined the association between sleep duration and heart age (predicted age of a person's vascular system based on their cardiovascular risk factor profile), a simplified way to express CVD risk. This study examines the association between sleep duration and excess heart age (EHA) (difference between heart age and chronological age) among U.S. adults. Methods: Pooled 2007-2014 National Health and Nutrition Examination Survey data were used. Self-reported sleep duration was classified into 5 categories (≤5, 6, 7, 8, and ≥9 hours of sleep per night). We used the sex-specific Framingham heart age algorithm to calculate each individual's heart age and used multivariable linear or logistic regression to examine the association between sleep duration and EHA or risk of EHA ≥10 years.