Safety and Health at Work

Occupational Safety and Health Research Institute, Korea Occupational Safety and Health Agency (산업안전보건연구원)
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Maintenance of Wakefulness and Occupational Injuries among Workers of an Italian Teaching Hospital

  • Received : 2015.02.12
  • Accepted : 2015.10.11
  • Published : 2016.06.30
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Abstract

Background: To assess in a laboratory setting the ability to stay awake in a sample of workers of an Italian hospital and to investigate the association between that ability and the risk of occupational injury. Methods: Nine workers at the University Hospital of Udine who reported an occupational injury in the study period (cases), and seven noninjured workers (controls) underwent a polysomnography and four 40-minute maintenance of wakefulness tests (MWT). Differences in sleep characteristics and in wakefulness maintenance were assessed using Wilcoxon's rank sums tests and Fisher's exact tests. Results: Controls had greater sleep latency, lower total sleep time, fewer leg movements, and a higher percentage ratio of cycling alternating pattern, were more likely not to fall asleep during the MWT and were less likely to have two or more sleep onsets. Although not all the differences reached statistical significance, cases had lower sleep onset times in Trials 1-3. Conclusion: In the literature, the evidence of an association between MWT results and real life risk of accidents is weak. Our results suggest a relationship between the MWT results and the risk of injury among hospital workers.

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References

  1. Patterson PD, Weaver MD, Frank RC, Warner CW, Martin-Gill C, Guyette FX, Fairbanks RJ, Hubble MW, Songer TJ, Callaway CW, Kelsey SF, Hostler D. Association between poor sleep, fatigue, and safety outcomes in emergency medical services providers. Prehosp Emerg Care 2012;16:86-97. https://doi.org/10.3109/10903127.2011.616261
  2. Rajaratnam SM, Barger LK, Lockley SW, Shea SA, Wang W, Landrigan CP, O'Brien CS, Qadri S, Sullivan JP, Cade BE, Epstein LJ, White DP, Czeisler CA., Harvard Work Hours, Health and Safety Group. Sleep disorders, health, and safety in police officers. JAMA 2011;306:2567-78. https://doi.org/10.1001/jama.2011.1851
  3. Centers for Disease Control and Prevention (CDC). Short sleep duration among workersdUnited States, 2010. MMWR Morb Mortal Wkly Rep 2012;27:281-5.
  4. Sullivan SS, Kushida CA. Multiple sleep latency test and maintenance of wakefulness test. Chest 2008;134:854-61. https://doi.org/10.1378/chest.08-0822
  5. Wise MS. Objective measures of sleepiness and wakefulness: application to the real world? J Clin Neurophysiol 2006;23:39-49. https://doi.org/10.1097/01.wnp.0000190416.62482.42
  6. Horne JA, Ostberg O. A self-assessment questionnaire to determine morningness-eveningness in human circadian rhythms. Int J Chronobiol 1976;4:97-110.
  7. Iber C, Ancoli-Israel S, Chesson A, Quan S, for the American Academy of Sleep Medicine [Internet]. The AASM Manual for the Scoring of Sleep and Associated Events: Rules, Terminology and Technical Specifications, 1st ed. Westchester (IL): American Academy of Sleep Medicine. 2007 [cited 2015 Feb 2]. Available from: http://www.nswo.nl/userfiles/files/AASM%20-%20Manual% 20for%20the%20Scoring%20ofSleep%20and%20Associted%20Events%20-% 2005-2007_2.pdf.
  8. Littner MR, Kushida C, Wise M, Davila DG, Morgenthaler T, Lee-Chiong T, Hirshkowitz M, Daniel LL, Bailey D, Berry RB, Kapen S, Kramer M., Standards of Practice Committee of the American Academy of Sleep Medicine. Practice parameters for clinical use of the multiple sleep latency test and the maintenance of wakefulness test. Sleep 2005;28:113-21. https://doi.org/10.1093/sleep/28.1.113
  9. Doghramji K, Mitler MM, Sangal RB, Shapiro C, Taylor S, Walsleben J, Belisle C, Erman MK, Hayduk R, Hosn R, O’Malley EB, Sangal JM, Schutte SL, Youakim JM. A normative study of the maintenance of wakefulness test (MWT). Electroencephalogr Clin Neurophysiol 1997;103:554-62. https://doi.org/10.1016/S0013-4694(97)00010-2
  10. Terzano MG, Parrino L, Spaggiari MC, Palomba V, Rossi M, Smerieri A. CAP variables and arousals as sleep electroencephalogram markers for primary insomnia. Clin Neurophysiol 2003;114:1715-23. https://doi.org/10.1016/S1388-2457(03)00136-6
  11. Philip P, Chaufton C, Taillard J, Sagaspe P, Leger D, Raimondi M, Vakulin A, Capelli A. Maintenance of wakefulness test scores and driving performance in sleep disorder patients and controls. Int J Psychophysiol 2013;89:195-202. https://doi.org/10.1016/j.ijpsycho.2013.05.013

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