Employees with shift work disorder experience excessive sleepiness also on non-work days: a cross-sectional survey linked to working hours register in Finnish hospitals

Feb 20, 2020Industrial health

Employees with shift work disorder feel very sleepy even on days off: a survey from Finnish hospitals

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Abstract

Of 2,900 shift workers surveyed, 18% reported symptoms of shift work disorder (SWD).

  • SWD is associated with excessive sleepiness on non-work days, with an odds ratio of 1.42.
  • Insomnia on non-work days is associated with SWD, with an odds ratio of 0.53.
  • SWD subtypes include insomnia only (4%), excessive sleepiness only (8%), and both symptoms (6%).
  • SWD-I is linked to excessive sleepiness on non-work days, with an odds ratio of 2.25.
  • Employees with SWD-I may require more time to recover from excessive sleepiness than their work schedule allows.

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