BACKGROUND & AIMS:
:Objectives: The work interval duration between the end of one workday and the start of the following workday is referred to as the daily rest period (DRP). The present study examined whether DRP - a proxy for sleep opportunity between work shifts - is associated with indicators of sleep debt and social jetlag among daytime workers. Methods: We used a web-based survey to gather data on demographics, average DRP in the previous month, time in bed (TIB), bedtime, wake-up time, and sleep timing on workdays and non-workdays. The Japanese daytime workers (n = 3,914) were divided into seven DRP groups (hours) as follows: <11, 11, 12, 13, 14, 15, and ≥16. Results: The two-way analyses of covariance (DRP group x day) for TIB, mid-sleep as sleep timing, bedtime, and wake-up time showed significant interactions (all p < .001). Specifically, TIB was significantly shorter, and mid-sleep and wake-up time were significantly earlier on workdays than on non-workdays, across all DRP groups (all p < .001). Additionally, the different values for TIB (sleep debt), sleep timing (social jetlag), bedtime, and wake-up time were calculated by subtracting workdays from non-workdays. The trend analysis showed that workers with longer DRP (sleep opportunity) had smaller differences in TIB, sleep timing, and wake-up time between workdays and non-workdays (all p < .001). Conclusions: Overall, daytime workers reported significant sleep debt and misalignment between work and free sleep-wake periods. However, workers with shorter DRPs (less sleep opportunity between shifts) reported significantly greater amounts of sleep debt and social jetlag than did workers with longer DRPs.
背景与目标:
目标:一个工作日结束至下一个工作日开始之间的工作间隔持续时间被称为每日休息时间(DRP)。本研究调查了DRP(工作轮班之间的睡眠机会的代表)是否与白天工作人员的睡眠债务和社会时差指标相关。方法:我们使用基于网络的调查来收集有关人口统计数据,上个月的平均DRP,上床时间(TIB),就寝时间,起床时间以及工作日和非工作日的睡眠时间的数据。日本的日间工作人员(n = 3,914)被分为七个DRP组(小时),分别为:<11、11、12、13、14、15和≥16。结果:对TIB,半睡,睡眠时间,就寝时间和苏醒时间进行协方差(DRP组x天)的双向分析显示出显着的交互作用(所有p <0.001)。具体而言,在所有DRP组中,TIB显着缩短,并且在工作日的半睡眠和唤醒时间比在非工作日显着更早(所有p <0.001)。此外,通过从非工作日中减去工作日来计算TIB(睡眠债务),睡眠时间(社会时差),就寝时间和起床时间的不同值。趋势分析表明,工作日与非工作日之间具有较长DRP(睡眠机会)的工人在TIB,睡眠时间和唤醒时间方面的差异较小(所有p <0.001)。结论:总体而言,日间工作人员报告了严重的睡眠负担,以及工作与自由睡眠-觉醒时间之间的错位。但是,与具有较长DRP的工人相比,具有较短DRP的工人(轮班之间较少的睡眠机会)报告了更多的睡眠债务和社会时差。