title: Insomnia symptoms and risk for unintentional fatal injuries--the HUNT Study.
abstract: OBJECTIVE
  To assess the association between insomnia symptoms and risk of fatal unintentional injuries.
  
  
  METHODS
  Population-based prospective cohort study with a mean follow-up of 14 y, linking health survey data with information on insomnia symptoms to the National Cause of Death Registry.
  
  
  METHODS
  Nord-Trøndelag County, Norway.
  
  
  METHODS
  A total of 54,399 men and women 20-89 y of age who participated in the Nord-Trøndelag Health Study between 1995 and 1997.
  
  
  METHODS
  N/A.
  
  
  RESULTS
  There were 277 unintentional fatal injuries, including 57 fatal motor vehicle injuries during follow-up. There was a dose-dependent association between the number of insomnia symptoms and risk of unintentional fatal injuries (P for trend 0.001) and fatal motor vehicle injuries (P for trend 0.023), respectively. The proportion of unintentional fatal injuries cases that could have been prevented in the absence of difficulties initiating sleep, difficulties maintaining sleep, and having a feeling of nonrestorative sleep were 8%, 9%, and 8%, respectively. The corresponding estimates for motor vehicle injuries were 34%, 11%, and 10%.
  
  
  CONCLUSIONS
  Insomnia is a major contributor to both unintentional fatal injuries in general as well as fatal motor vehicle injuries. Increasing public health awareness about insomnia and identifying persons with insomnia may be important in preventing unintentional fatal injuries.
authors.affiliation: Department of Public Health, Faculty of Medicine, Norwegian University of Science and Technology, Trondheim, Norway ; Department of Internal Medicine, St. Olavs Hospital, Trondheim, Norway.
authors.forename: Lars Erik
authors.initials: LE
authors.lastname: Laugsand
authors.affiliation: Department of Public Health, Faculty of Medicine, Norwegian University of Science and Technology, Trondheim, Norway.
authors.forename: Linn B
authors.initials: LB
authors.lastname: Strand
authors.affiliation: Department of Public Health, Faculty of Medicine, Norwegian University of Science and Technology, Trondheim, Norway.
authors.forename: Lars J
authors.initials: LJ
authors.lastname: Vatten
authors.affiliation: Department of Public Health, Faculty of Medicine, Norwegian University of Science and Technology, Trondheim, Norway ; Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden.
authors.forename: Imre
authors.initials: I
authors.lastname: Janszky
authors.affiliation: Department of Public Health, Faculty of Medicine, Norwegian University of Science and Technology, Trondheim, Norway.
authors.forename: Johan Håkon
authors.initials: JH
authors.lastname: Bjørngaard
mesh_terms: D000056:Accident Prevention; D000059:Accidents / Q000706:statistics & numerical data*; D000063:Accidents, Traffic / Q000706:statistics & numerical data; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002423:Cause of Death; D005260:Female; D005500:Follow-Up Studies; D006306:Health Surveys; D006801:Humans; D008297:Male; D008875:Middle Aged; D009664:Norway / Q000453:epidemiology; D011446:Prospective Studies; D012042:Registries; D012306:Risk; D007319:Sleep Initiation and Maintenance Disorders / Q000150:complications* / Q000453:epidemiology* / Q000523:psychology; D014947:Wounds and Injuries / Q000150:complications* / Q000453:epidemiology* / Q000209:etiology; D055815:Young Adult
keywords: accidents; injuries; insomnia symptoms; motor vehicle injuries; sleep; unintentional fatal injuries