Early morning work--prevalence and relation to sleep/wake problems: a national representative survey

Chronobiology International
Torbjörn AkerstedtJan Selén

Abstract

Very little is known about the prevalence of morning work and its relationship with sleep and fatigue. The present study obtained data from a representative sample of the Swedish population (N = 5489) to address this limitation in the literature. The results show that 15% of the population commenced work, at least occasionally, before 05:30 h and approximately 2% did so most of the time. With the increasing phase advance of the start time, the time of rising also advanced, but bedtime changed very little. Thus, early start times were not compensated with earlier bedtimes. Total sleep time decreased as the work start time was advanced; sleep duration was <5 h for work start times between 03:00 and 04:30 h. The results also indicated that advanced start times were linked with increased fatigue, feelings of not being well rested, and reports of early start times as a rather large or very large problem. However, difficulties in waking and disturbed sleep did not change with advanced start times. It was concluded that early start times are common and are associated with sleep problems and fatigue.

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Citations

Oct 1, 2013·Traffic Injury Prevention·Roberto VivoliMargherita Bergomi
Jan 4, 2013·Chronobiology International·Ilona MerikantoTimo Partonen
Mar 7, 2012·Chronobiology International·Ilona MerikantoTimo Partonen
May 25, 2012·Chronobiology International·Jouko NättiArmi Mustosmäki
May 25, 2012·Chronobiology International·Cibele Aparecida CrispimMarco Túlio de Mello
May 25, 2012·Chronobiology International·Jillian Dorrian, Natalie Skinner
Jun 26, 2015·Diabetes Care·Céline VetterEva S Schernhammer
Aug 5, 2015·Ergonomics·Hardy A van de VenUte Bültmann
Jan 28, 2014·Applied Ergonomics·Mirjam RadstaakMichiel A J Kompier
May 11, 2015·Accident; Analysis and Prevention·M PylkkönenM Sallinen
Sep 21, 2013·Sleep Medicine·Ilona MerikantoTimo Partonen
Dec 1, 2010·Safety and Health at Work·Giovanni Costa
Jun 26, 2007·Physiology & Behavior·Torbjörn AkerstedtMats Gillberg
Dec 8, 2017·Journal of Occupational and Environmental Medicine·Zachary McGillisCéline Larivière
Jun 21, 2011·Journal of Occupational and Environmental Medicine·Philip TuckerJ-C Marquié
Nov 8, 2018·The European Journal of Neuroscience·Céline Vetter
Aug 23, 2020·International Journal of Environmental Research and Public Health·María Teresa Rodríguez-González-MoroJuana Inés Gallego-Gómez
Jan 9, 2021·BMC Sports Science, Medicine and Rehabilitation·Seung-Taek LimEunjae Lee

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