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Experience and limited lighting may affect sleepiness of tunnel workers.

Lykouras D, Karkoulias K, Patouchas D, Lakoumentas J, Sampsonas F, Tranou MK, Faliagka E, Tsakalidis A, Spiropoulos K - BMC Res Notes (2014)

Bottom Line: Statistical analysis revealed that workers of lower Epworth had a mean age of 43.6 years, compared to the mean age of 36.4 years of workers with higher Epworth.The shift schedule did not reveal any statistically significant correlation.However, there is no relationship between night shifts and sleepiness, possibly because of exposure to artificial lighting in the construction site.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Pulmonary Medicine, University of Patras, University Hospital of Patras, Rio, Patras 26500, Greece. spircos@upatras.gr.

ABSTRACT

Background: Working on shifts, especially on a night shift, influences the endogenous sleep regulation system leading to diminished sleep time and increased somnolence. We attempted to evaluate the impact of shifts on sleepiness and correlate the sleepiness score to the experience in a shift schedule.

Materials and methods: This cross-sectional study consists of 42 male and 2 female workers involved in a tunnel construction. They underwent spirometry, pulse oximetry and were asked to complete the Epworth Sleepiness Scale questionnaire.

Results: Statistical analysis revealed that workers of lower Epworth had a mean age of 43.6 years, compared to the mean age of 36.4 years of workers with higher Epworth. Furthermore, workers of lower Epworth were characterized by a mean number of shift years equal to 14.8, while those of higher Epworth possessed a mean number of shift years equal to 8. The shift schedule did not reveal any statistically significant correlation.

Conclusions: Workers employed for a longer time had diminished sleepiness. However, there is no relationship between night shifts and sleepiness, possibly because of exposure to artificial lighting in the construction site.

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Related in: MedlinePlus

Association between the Epworth Sleepness Scale and age.
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Figure 1: Association between the Epworth Sleepness Scale and age.

Mentions: Statistical analysis revealed that the two groups of subsets differed significantly both in age (Figure 1) and shift years (Figure 2). More specifically, workers of lower Epworth had a mean age of 43.6 years, compared to the mean age of 36.4 years of workers with higher Epworth (t-test, p = 0.04). Furthermore, workers of lower Epworth were characterized by a mean number of shift years equal to 14.8, while those of higher Epworth possessed a mean number of shift years equal to 8 (t-test, p = 0.03). Thus, the group of higher Epworth subjects was comprised of significantly younger and less experienced workers.


Experience and limited lighting may affect sleepiness of tunnel workers.

Lykouras D, Karkoulias K, Patouchas D, Lakoumentas J, Sampsonas F, Tranou MK, Faliagka E, Tsakalidis A, Spiropoulos K - BMC Res Notes (2014)

Association between the Epworth Sleepness Scale and age.
© Copyright Policy - open-access
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC4118266&req=5

Figure 1: Association between the Epworth Sleepness Scale and age.
Mentions: Statistical analysis revealed that the two groups of subsets differed significantly both in age (Figure 1) and shift years (Figure 2). More specifically, workers of lower Epworth had a mean age of 43.6 years, compared to the mean age of 36.4 years of workers with higher Epworth (t-test, p = 0.04). Furthermore, workers of lower Epworth were characterized by a mean number of shift years equal to 14.8, while those of higher Epworth possessed a mean number of shift years equal to 8 (t-test, p = 0.03). Thus, the group of higher Epworth subjects was comprised of significantly younger and less experienced workers.

Bottom Line: Statistical analysis revealed that workers of lower Epworth had a mean age of 43.6 years, compared to the mean age of 36.4 years of workers with higher Epworth.The shift schedule did not reveal any statistically significant correlation.However, there is no relationship between night shifts and sleepiness, possibly because of exposure to artificial lighting in the construction site.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Pulmonary Medicine, University of Patras, University Hospital of Patras, Rio, Patras 26500, Greece. spircos@upatras.gr.

ABSTRACT

Background: Working on shifts, especially on a night shift, influences the endogenous sleep regulation system leading to diminished sleep time and increased somnolence. We attempted to evaluate the impact of shifts on sleepiness and correlate the sleepiness score to the experience in a shift schedule.

Materials and methods: This cross-sectional study consists of 42 male and 2 female workers involved in a tunnel construction. They underwent spirometry, pulse oximetry and were asked to complete the Epworth Sleepiness Scale questionnaire.

Results: Statistical analysis revealed that workers of lower Epworth had a mean age of 43.6 years, compared to the mean age of 36.4 years of workers with higher Epworth. Furthermore, workers of lower Epworth were characterized by a mean number of shift years equal to 14.8, while those of higher Epworth possessed a mean number of shift years equal to 8. The shift schedule did not reveal any statistically significant correlation.

Conclusions: Workers employed for a longer time had diminished sleepiness. However, there is no relationship between night shifts and sleepiness, possibly because of exposure to artificial lighting in the construction site.

Show MeSH
Related in: MedlinePlus