title: Sleep and health in oil rig workers--before and after a two week work period offshore.
abstract: This study compared subjective sleep and subjective health complaints among Norwegian oil rig workers, before and after a two week work period. The study also compared differences between two different work schedules. The workers worked either two weeks of day shift (n=90) or two weeks of a swing shift schedule (n=93), involving one week of night shifts, immediately followed by one week of day shifts. Overall, the workers reported significantly poorer sleep quality and more complaints of insomnia at the end compared to the start of the work period. However, there was no significant difference in terms of subjective health complaints. Furthermore, there were no clear differences in changes in sleep quality, insomnia or subjective health complaints during the work period between day- and swing shift workers. However, at the end of the work period a higher proportion of insomniacs were seen among swing shift workers compared with day workers. To conclude, sleep quality and complaints of insomnia became worse during the work period. However, there were few differences in changes in terms of sleep or subjective health complaints between day- and swing shift, suggesting that 12 h day shift affected sleep and health similarly to the schedule involving night work.
authors.affiliation: Department of Public Health and Primary Health Care, University of Bergen, Norway.
authors.forename: Siri
authors.initials: S
authors.lastname: Waage
authors.forename: Ståle
authors.initials: S
authors.lastname: Pallesen
authors.forename: Bente Elisabeth
authors.initials: BE
authors.lastname: Moen
authors.forename: Bjørn
authors.initials: B
authors.lastname: Bjorvatn
mesh_terms: D000328:Adult; D019652:Extraction and Processing Industry; D005260:Female; D006304:Health Status; D006801:Humans; D008297:Male; D008875:Middle Aged; D009664:Norway; D009784:Occupational Diseases / Q000209:etiology / Q000503:physiopathology*; D016272:Occupational Health; D009792:Oceans and Seas; D010578:Petroleum; D012890:Sleep / Q000502:physiology*; D007319:Sleep Initiation and Maintenance Disorders / Q000209:etiology / Q000503:physiopathology*; D011795:Surveys and Questionnaires; D014937:Work / Q000502:physiology; D014940:Work Schedule Tolerance / Q000502:physiology*; D055815:Young Adult
chemical_list: D010578:Petroleum