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ORIGINAL ARTICLE Self-Reported and Measured Sleep Duration How Similar Are They? a a b,c b a Diane S. Lauderdale, Kristen L. Knutson, Lijing L. Yan, Kiang Liu, and Paul J. Rathouz differ from previously reported associations between self-reported Background: Recent epidemiologic studies have found that self- sleep and health. reported duration of sleep is associated with obesity, diabetes, (Epidemiology 2008;19: 838–845) hypertension, and mortality. The extent to which self reports of sleep duration are similar to objective measures and whether individual characteristics influence the degree of similarity are not known. Methods: Eligible participants at the Chicago site of the Coronary ecent epidemiologic studies have found that self-reported Artery Risk Development in Young Adults Study were invited to Rhabitual sleep duration is associated with obesity, diabe- participate in a 2003–2005 ancillary sleep study; 82% (n 669) 1–13 tes, hypertension, and mortality. These studies have been agreed. Sleep measurements collected in 2 waves included 3 days motivated in part by exciting findings from sleep laboratory each of wrist actigraphy, a sleep log, and questions about usual sleep duration. We estimate the average difference and correlation be- studies demonstrating that reduced sleep hours produce short- tween subjectively and objectively measured sleep
Epidemiology – Wolters Kluwer Health
Published: Nov 1, 2008
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