The Relationship between Sleep Characteristics and Workplace Accidents

  • Maryam Saraei Center for Research on Occupational Diseases, Tehran University of Medical Sciences, Tehran, Iran
  • Nazanin Izadi Department of Occupational Medicine, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
  • Arezu Najafi Occupational Sleep Research Center, Baharloo Hospital, Tehran University of Medical Sciences, Tehran, Iran
  • Mahdi Mohajeri Occupational Sleep Research Center, Baharloo Hospital, Tehran University of Medical Sciences, Tehran, Iran
  • Maryam Maruf Department of Community Medicine, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
  • Khosro Sadeghniiat-Haghighi Occupational Sleep Research Center, Baharloo Hospital, Tehran University of Medical Sciences, Tehran, Iran

Abstract

Background and Objective: Sleep problems in industries can influence workers’ health. Shift work and its associated sleep problems are quite common among workers in different industries. The aim of this study was to assess sleep quality, insomnia, excessive daytime sleepiness (EDS), and obstructive sleep apnea (OSA) in workers of an automobile factory. Materials and Methods: This cross-sectional study was conducted during annual periodic examination of workers from a production unit of an automobile factory. A total of 522 workers filled in questionnaires including demographic characteristics, workplace accidents, Pittsburgh Sleep Quality Index (PSQI), Insomnia Severity Index (ISI), Epworth Sleepiness Scale (ESS), and STOP-BANG [snoring, tiredness, observed stop of breathing in sleep, blood pressure, body mass index (BMI), age, neck circumference, gender]. T-test and descriptive statistics were used for data analysis. Results: The participants had mean and standard deviation (SD) age of 37.24 ± 5.73 years. Of 522 participants, 65.3%, 14.4%, and 3.3% had PSQI ≥ 5, ESS ≥ 13, and STOP-BANG ≥ 4, respectively. Higher scores of PSQI and ISI were associated with significant increase of workplace accidents (P = 0.010 and P = 0.004, respectively). Moreover, participants with rotational shift work significantly had more ISI than the ones with fixed shift work. Conclusion: Poor sleep quality and insomnia were prevalent among studied workers with shift work. Sleep problems also had significant association with workplace accidents. This finding warrants more attention towards shift schedules of the workers and further investigation and management of identified sleep problems.

References

Ohayon MM. Epidemiology of insomnia: what we know and what we still need to learn. Sleep medicine reviews. 2002 May 31;6(2):97-111.

Uehli K. Investigation of the relationship between sleep problems and work injuries (Doctoral dissertation, University_of_Basel).

Asghari A, Farhadi M, Kamrava SK, Ghalehbaghi B. Subjective sleep quality in urban population. Archives of Iranian medicine. 2012 Feb 1;15(2):95.

Nezamodini Z, Hoseyni P, Behzadi E, Latifi SM. Relationship between Shift works with sleep disorders and public health in a Pipe Co. J Saf Promot Inj Prev. 2015;2(3):189–95. [persian]

Boivin DB, Boudreau P. Impacts of shift work on sleep and circadian rhythms. Pathologie Biologie. 2014 Oct 31;62(5):292-301.

Linton SJ, Kecklund G, Franklin KA, Leissner LC, Sivertsen B, Lindberg E, Svensson AC, Hansson SO, Sundin Ö, Hetta J, Björkelund C. The effect of the work environment on future sleep disturbances: a systematic review. Sleep medicine reviews. 2015 Oct 31;23:10-9.

Mokarrami HR, Kakouei H, Dehdashti AR, Jahani J. Comparison of general health status and quality of sleep in shift work employees in a Press factory. 2010;14(3):237–43. [persian]

Vallières A, Azaiez A, Moreau V, LeBlanc M, Morin CM. Insomnia in shift work. Sleep medicine. 2014 Dec 31;15(12):1440-8.

Flo E, Pallesen S, Magerøy N, Moen BE, Grønli J, Nordhus IH, Bjorvatn B. Shift work disorder in nurses–assessment, prevalence and related health problems. PloS one. 2012 Apr 2;7(4):e33981.

Di Milia L, Waage S, Pallesen S, Bjorvatn B. Shift work disorder in a random population sample–prevalence and comorbidities. PLoS One. 2013 Jan 25;8(1):e55306.

Drake CL, Roehrs T, Richardson G, Walsh JK, Roth T. Shift work sleep disorder: prevalence and consequences beyond that of symptomatic day workers. Sleep. 2004 Dec 1;27(8):1453-62.

Boivin DB, Tremblay GM, James FO. Working on atypical schedules. Sleep medicine. 2007 Sep 30;8(6):578-89.

Mohammad Fam I, Zokaei HR, Simae N. Epidemiological evaluation of fatal occupational accidents and estimation of related human costs in Tehran. J Zahedan Univ Med Sci Heal Serv. 2007;8(4):299–307. [persian]

Mehrparvar AH, Mirmohammadi SJ, Qovveh MA, Hajian H, Dehqan M, Nabi-Meybodi R, Nabi-Meybodi N. Epidemiologic evaluation of documented occupational accidents in Yazd province. 2011;3(3):54–62. [persian]

Ohayon MM, Lemoine P, Arnaud-Briant V, Dreyfus M. Prevalence and consequences of sleep disorders in a shift worker population. Journal of psychosomatic research. 2002 Jul 31;53(1):577-83.16. Hassani S, Rahnama N. Association between Occupational Accidents and Sleep Apnea in Hospital Staff. 2015;14(3):201–7.

Sadeghniiat-Haghighi K, Montazeri A, Khajeh-Mehrizi A, Ghajarzadeh M, Alemohammad ZB, Aminian O, Sedaqat M. The STOP-BANG questionnaire : reliability and validity of the Persian version in sleep clinic population. Qual Life Res. 2015;24(8):2025–30.

Sadeghniiat Haghighi K, Montazeri A, Khajeh Mehrizi A, Aminian O, Rahimi Golkhandan A, Saraei M. The Epworth Sleepiness Scale : translation and validation study of the Iranian version. Sleep Breath. 2013;17(1):419–26.

Yazdi Z, Sadeghniiat-Haghighi K, Zohal MA, Elmizadeh K. Validity and Reliability of the Iranian Version of the Insomnia Severity Index. Malays J Med Sci. 2012;19(4):31–6.

Moghaddam JF, Nakhaee N. Reliability and validity of the Persian version of the Pittsburgh Sleep Quality Index ( PSQI-P ). Sleep Breath. 2012;79–82.

Son MI, KONG JO, KOH SB, Kim J, HÄrmÄ M. Effects of long working hours and the night shift on severe sleepiness among workers with 12‐hour shift systems for 5 to 7 consecutive days in the automobile factories of Korea. Journal of sleep research. 2008 Dec 1;17(4):385-94.

Salehi K, Alhani F, Sadegh-niat K, Mahmoudifar Y. Quality of Sleep and Related Factors among Imam Khomeini Hospital Staff Nurses. 2010;23(63):18–25. [persian]

Rahimpoir F, Saeedi F, Fazli A. Relation between sleep quality and general health in shift work nurses. 2012;4(4):8–13. [persian]

Ghalichi L, Pournik O, Ghaffari M, Vingard E. Sleep Quality among Health Care Workers. 2013;16(2):100–4. [persian]

Sadeghniiat-Haghighi K, Yazdi Z, Kazemifar AM. Sleep quality in long haul truck drivers: A study on Iranian national data. Chinese journal of traumatology. 2016 Aug 31;19(4):225-8.

Nakata A. Effects of long work hours and poor sleep characteristics on workplace injury among full‐time male employees of small‐and medium‐scale businesses. Journal of sleep research. 2011 Dec 1;20(4):576-84.

Valent F, Liva G, Mariuz M, Bellomo F, De Corti D, Degan S, Dolso P, Barbone F, Gigli GL, Brusaferro S. A case-control study of sleep-related factors and occupational injuries at an Italian teaching hospital. Fatigue: Biomedicine, Health & Behavior. 2015 Oct 2;3(4):194-204.

de Cordova PB, Bradford MA, Stone PW. Increased errors and decreased performance at night: A systematic review of the evidence concerning shift work and quality. Work. 2016 Jan 1;53(4):825-34.

Published
2019-01-07
How to Cite
1.
Saraei M, Izadi N, Najafi A, Mohajeri M, Maruf M, Sadeghniiat-Haghighi K. The Relationship between Sleep Characteristics and Workplace Accidents. JSS. 3(1-2):30-5.
Section
Original Article(s)