Will daytime occupational noise exposures induce nighttime sleep disturbance?

Sleep Medicine
Cheng-Yu LinYueliang Leon Guo

Abstract

Nighttime environmental noise affects sleep quality. However, the effects of daytime occupational noise remain unclear. A quasi-experiment of 48 participants who had been employed for at least six months in two hospital cafeterias. The participants were randomly designated to be assessed on high- and low-noise workdays for 8 h or low- and high-noise workdays, separated by a washout period of 14 days. Subsequently, pure tone audiometry, autonomic nervous system (ANS) function tests, serum cortisol tests, and polysomnography were conducted. For the 40 participants in the study, the 8-h time-weighted average of personal noise exposed on high- and low-noise workdays was 76.8 dBA (standard deviation, SD: 6.2) and 61.0 dBA (SD: 7.1), respectively. Participants with higher personal noise exposure during the day were found to have a lower percentage of slow wave sleep (percent change of mean value: -1.287%; 95% CI: -2.602%, -0.037%) and lower sleep efficiency (-0.267%; 95% CI: -0.525%, -0.008%). In addition, after work, personal noise exposure was revealed to be related to increased serum cortisol levels (1.698%; 95% CI: 0.887%, 2.528%), and sympathetic activity as measured by low frequency/high frequency (3.000%; 95% CI: 1.294%, 4.706...Continue Reading

Citations

Aug 20, 2018·Environmental Science and Pollution Research International·Alberto AbadJavier Taboada
Jan 20, 2020·International Archives of Occupational and Environmental Health·Hamidreza MokaramiReza Kazemi
Nov 4, 2021·Environmental Science and Pollution Research International·AhmadAli KheirandishMohammad Javad Zare Sakhvidi

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