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.

DOI: 10.1093/aje/kwv251

Cite this paper

@article{Cespedes2016ComparisonOS, title={Comparison of Self-Reported Sleep Duration With Actigraphy: Results From the Hispanic Community Health Study/Study of Latinos Sue{\~n}o Ancillary Study.}, author={Elizabeth M. Cespedes and Frank B Hu and Susan Redline and Bernard Rosner and Carmela Alc{\'a}ntara and Jianwen Cai and Martica H. Hall and Jos{\'e} S . Loredo and Yasmin Mossavar-Rahmani and Alberto Ramirez Ramos and Kathryn Jean Reid and Neomi A. Shah and Daniela Sotres-Alvarez and Phyllis C. Zee and Rui Wang and Sanjay R. Patel}, journal={American journal of epidemiology}, year={2016}, volume={183 6}, pages={561-73} }