Jens Bonke1. 1. Rockwool Foundation Research Unit, Copenhagen, Denmark. Electronic address: jb@rff.dk.
Abstract
OBJECTIVE: The aim of the present study was to investigate changes in the prevalence of short and long sleepers in Denmark, and to explore the associations between socioeconomic status, body mass index and sleep duration. BACKGROUND: Sleeping behavior is considered to be a risk factor for morbidity and mortality, but there is little information on population sleep in Denmark; however, it is suspected that sleep durations have declined over time. DATA AND METHODS: Data were used from five Danish population-representative time-use studies spanning 1964-2008/09. RESULTS: The proportion of short sleepers increased significantly until the end of the 1980s, whereafter it decreased significantly. The proportion of long sleepers reached a maximum in 1975. It was also found that the increase in women's employment rates was associated with half the decrease in their sleep duration over the last 45 years. In accordance with previous literature, it can be shown that both short and long sleep are associated with being overweight/obesity. CONCLUSIONS: In Denmark, the same number of hours is slept today as in the mid-1960s, with nearly the same prevalence of short and long sleepers.
OBJECTIVE: The aim of the present study was to investigate changes in the prevalence of short and long sleepers in Denmark, and to explore the associations between socioeconomic status, body mass index and sleep duration. BACKGROUND: Sleeping behavior is considered to be a risk factor for morbidity and mortality, but there is little information on population sleep in Denmark; however, it is suspected that sleep durations have declined over time. DATA AND METHODS: Data were used from five Danish population-representative time-use studies spanning 1964-2008/09. RESULTS: The proportion of short sleepers increased significantly until the end of the 1980s, whereafter it decreased significantly. The proportion of long sleepers reached a maximum in 1975. It was also found that the increase in women's employment rates was associated with half the decrease in their sleep duration over the last 45 years. In accordance with previous literature, it can be shown that both short and long sleep are associated with being overweight/obesity. CONCLUSIONS: In Denmark, the same number of hours is slept today as in the mid-1960s, with nearly the same prevalence of short and long sleepers.
Authors: Shawn D Youngstedt; Eric E Goff; Alexandria M Reynolds; Daniel F Kripke; Michael R Irwin; Richard R Bootzin; Nidha Khan; Girardin Jean-Louis Journal: Sleep Med Rev Date: 2015-08-28 Impact factor: 11.609
Authors: Mako Nagayoshi; Pamela L Lutsey; David Benkeser; Christina L Wassel; Aaron R Folsom; Eyal Shahar; Hiroyasu Iso; Matthew A Allison; Michael H Criqui; Susan Redline Journal: Atherosclerosis Date: 2016-06-25 Impact factor: 5.162
Authors: Mitch J Duncan; Corneel Vandelanotte; Stewart G Trost; Amanda L Rebar; Naomi Rogers; Nicola W Burton; Beatrice Murawski; Anna Rayward; Sasha Fenton; Wendy J Brown Journal: BMC Public Health Date: 2016-07-30 Impact factor: 3.295
Authors: Vlad Sever Neculicioiu; Ioana Alina Colosi; Carmen Costache; Alexandra Sevastre-Berghian; Simona Clichici Journal: Int J Environ Res Public Health Date: 2022-03-16 Impact factor: 4.614