title: Comparison of Self-Reported Sleep Duration With Actigraphy: Results From the Hispanic Community Health Study/Study of Latinos Sueño Ancillary Study.
abstract: Most studies of sleep and health outcomes rely on self-reported sleep duration, although correlation with objective measures is poor. In this study, we defined sociodemographic and sleep characteristics associated with misreporting and assessed whether accounting for these factors better explains variation in objective sleep duration among 2,086 participants in the Hispanic Community Health Study/Study of Latinos who completed more than 5 nights of wrist actigraphy and reported habitual bed/wake times from 2010 to 2013. Using linear regression, we examined self-report as a predictor of actigraphy-assessed sleep duration. Mean amount of time spent asleep was 7.85 (standard deviation, 1.12) hours by self-report and 6.74 (standard deviation, 1.02) hours by actigraphy; correlation between them was 0.43. For each additional hour of self-reported sleep, actigraphy time spent asleep increased by 20 minutes (95% confidence interval: 19, 22). Correlations between self-reported and actigraphy-assessed time spent asleep were lower with male sex, younger age, sleep efficiency <85%, and night-to-night variability in sleep duration ≥1.5 hours. Adding sociodemographic and sleep factors to self-reports increased the proportion of variance explained in actigraphy-assessed sleep slightly (18%-32%). In this large validation study including Hispanics/Latinos, we demonstrated a moderate correlation between self-reported and actigraphy-assessed time spent asleep. The performance of self-reports varied by demographic and sleep measures but not by Hispanic subgroup.
authors.forename: Elizabeth M
authors.initials: EM
authors.lastname: Cespedes
authors.forename: Frank B
authors.initials: FB
authors.lastname: Hu
authors.forename: Susan
authors.initials: S
authors.lastname: Redline
authors.forename: Bernard
authors.initials: B
authors.lastname: Rosner
authors.forename: Carmela
authors.initials: C
authors.lastname: Alcantara
authors.forename: Jianwen
authors.initials: J
authors.lastname: Cai
authors.forename: Martica H
authors.initials: MH
authors.lastname: Hall
authors.forename: Jose S
authors.initials: JS
authors.lastname: Loredo
authors.forename: Yasmin
authors.initials: Y
authors.lastname: Mossavar-Rahmani
authors.forename: Alberto R
authors.initials: AR
authors.lastname: Ramos
authors.forename: Kathryn J
authors.initials: KJ
authors.lastname: Reid
authors.forename: Neomi A
authors.initials: NA
authors.lastname: Shah
authors.forename: Daniela
authors.initials: D
authors.lastname: Sotres-Alvarez
authors.forename: Phyllis C
authors.initials: PC
authors.lastname: Zee
authors.forename: Rui
authors.initials: R
authors.lastname: Wang
authors.forename: Sanjay R
authors.initials: SR
authors.lastname: Patel
mesh_terms: D056044:Actigraphy; D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D006630:Hispanic or Latino; D006801:Humans; D008297:Male; D008875:Middle Aged; D057566:Self Report; D012893:Sleep Wake Disorders / Q000453:epidemiology*; D012959:Socioeconomic Factors; D014481:United States / Q000453:epidemiology
keywords: Hispanic Americans; Latinos; actigraphy; measurement error; sleep; sleep duration; validation studies