Journal
JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL MEDICINE
Volume 53, Issue 7, Pages 794-798Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/JOM.0b013e318221c64c
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Funding
- Institute of Occupational Safety & Health (United Kingdom)
- Centre National de la Recherche Scientifique
- Midi-Pyrenees Regional Council
- Ministere de l'Enseignement Superieur
- Midi-Pyrenees CRAM
- Ministere du Travail (France)
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Objective: With workforces in industrialized countries getting older, the study examined how shiftworking affects sleep in later life. Method: Longitudinal data were collected in 1996, 2001, and 2006 from a large sample of employees who were 32, 42, 52, and 62 years old in 1996. Results: Effects of shiftwork were most apparent in middle-aged participants, becoming less apparent in later years when people tended to leave shiftwork. Nevertheless, a group of younger former shiftworkers reported more sleep problems than those who had never worked shifts. Giving up shiftwork offset a trend for sleep problems to accumulate over time, with the net result of no change in sleep problems after cessation of shiftwork. Conclusions: Poor sleep quality is a temporary consequence of shiftwork for some, whereas for others it is a cause of shiftwork intolerance.
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