Ha Ryun, Park Jae Bum, Lee Kyung-Jong, Choi Sunguk, Jeong Inchul
Department of Occupational and Environmental Medicine, Ajou University Hospital, Suwon, Korea.
Department of Occupational and Environmental Medicine, Ajou University School of Medicine, Suwon, Korea.
Ann Occup Environ Med. 2020 Jun 18;32:e18. doi: 10.35371/aoem.2020.32.e18. eCollection 2020.
Change in working time arrangement (WTA) can be harmful to workers' sleep and health. This study aimed to investigate the association between change in working time arrangement and sleep disturbance.
This study used data from the Fifth Korean Working Condition Survey and included 33,203 paid workers. We performed a stratified analysis by sex. After dividing the participants into 6 groups based on whether or not they experienced WTA changes, and their weekly working hours (≤40, 41-52, ≥53 hours), we calculated odds ratio (OR) using the weekly working hours ≤40 hours and with no WTA change as the reference group.
Of the 33,203 paid workers, participants who experienced change in working time arrangement had higher prevalence of all three types of sleep disturbance symptoms (difficulty in falling asleep, waking up repeatedly during sleep, and waking up with a feeling of exhaustion and fatigue) in both sexes. Compared to the reference group at 95% confidence interval (CI), the group with change in WTA showed elevated OR values of 1.91 (95% CI: 1.73-2.11), 1.93 (95% CI: 1.74-2.14), 2.47 (95% CI: 2.26-2.71) for male workers; and 1.93 (95% CI: 1.73-2.16), 2.02 (95% CI: 1.80-2.27), 2.24 (95% CI: 2.01-2.50) for female workers, for difficulty in falling asleep, waking up repeatedly during the sleep, waking up with a feeling of exhaustion, and fatigue, respectively.
Workers who experience change in work time arrangement show a high risk of sleep disturbance in both sexes.
工作时间安排（WTA）的改变可能对工人的睡眠和健康有害。本研究旨在调查工作时间安排的变化与睡眠障碍之间的关联。
本研究使用了韩国第五次工作条件调查的数据，包括33203名带薪工人。我们按性别进行了分层分析。在根据参与者是否经历WTA变化及其每周工作小时数（≤40、41 - 52、≥53小时）将其分为6组后，我们以每周工作小时数≤40小时且未发生WTA变化的组作为参照组，计算优势比（OR）。
在33203名带薪工人中，经历工作时间安排变化的参与者在男女两性中出现的所有三种睡眠障碍症状（入睡困难、睡眠中反复醒来、醒来时感到疲惫和疲劳）的患病率都更高。与95%置信区间（CI）的参照组相比，WTA发生变化的组中，男性工人入睡困难、睡眠中反复醒来、醒来时感到疲惫和疲劳的OR值分别为1.91（95%CI：1.73 - 2.11）、1.93（95%CI：1.74 - 2.14）、2.47（95%CI：2.26 - 2.71）；女性工人的相应OR值分别为1.93（95%CI：1.73 - 2.16）、2.02（95%CI：1.80 - 2.27）、2.24（95%CI：2.01 - 2.50）。
经历工作时间安排变化的工人在男女两性中都有较高的睡眠障碍风险。
