Abstract：
OBJECTIVE: This study aimed to identify changes in sleep patterns and fatigue levels during consecutive night shifts among shift nurses and to determine the association between sleep parameters and increased fatigue levels during work.
METHODS: This prospective observational study employing ecological momentary assessments was conducted using data collected from 98 shift nurses working in Korean hospitals between June 2019 and February 2021. The sleep patterns were recorded using actigraphy. The participants reported their fatigue levels at the beginning and end of each night shift in real time via a mobile link. Linear mixed models were used for the analysis.
RESULTS: Nurses spent significantly less time in bed and had shorter sleep durations during consecutive night shifts than on off-duty days, whereas their wake times after sleep onset were much longer on off-duty days than on on-duty days. Fatigue levels were higher on the second and third night-shift days than on the first night-shift days. A shorter time spent in bed and asleep was associated with a greater increase in fatigue levels at the end of the shift than at the beginning.
CONCLUSIONS: Nurses experience significant sleep deprivation during consecutive night shifts compared with off-duty days, and this sleep shortage is associated with a considerable increase in fatigue levels at the end of shifts. Nurse managers and administrators must ensure sufficient intershift recovery time during consecutive night shifts to increase the time spent in bed and sleeping.
METHODS: This prospective observational study employing ecological momentary assessments was conducted using data collected from 98 shift nurses working in Korean hospitals between June 2019 and February 2021. The sleep patterns were recorded using actigraphy. The participants reported their fatigue levels at the beginning and end of each night shift in real time via a mobile link. Linear mixed models were used for the analysis.
RESULTS: Nurses spent significantly less time in bed and had shorter sleep durations during consecutive night shifts than on off-duty days, whereas their wake times after sleep onset were much longer on off-duty days than on on-duty days. Fatigue levels were higher on the second and third night-shift days than on the first night-shift days. A shorter time spent in bed and asleep was associated with a greater increase in fatigue levels at the end of the shift than at the beginning.
CONCLUSIONS: Nurses experience significant sleep deprivation during consecutive night shifts compared with off-duty days, and this sleep shortage is associated with a considerable increase in fatigue levels at the end of shifts. Nurse managers and administrators must ensure sufficient intershift recovery time during consecutive night shifts to increase the time spent in bed and sleeping.
摘要：
目的：本研究旨在确定轮班护士在连续夜班期间睡眠模式和疲劳水平的变化，并确定睡眠参数与工作期间疲劳水平增加之间的关联。
方法：这项采用生态瞬时评估的前瞻性观察研究是使用从2019年6月至2021年2月在韩国医院工作的98名轮班护士收集的数据进行的。使用活动描记术记录睡眠模式。参与者通过移动链接实时报告每个夜班开始和结束时的疲劳水平。线性混合模型用于分析。
结果：护士在连续夜班中的卧床时间明显少于下班时间，睡眠时间也较短。而他们在睡眠开始后的觉醒时间在下班时间比在值班时间长得多。第二和第三个夜班日的疲劳水平高于第一个夜班日。与开始时相比，在床上和睡觉的时间较短与轮班结束时疲劳水平的增加有关。
结论：与下班时间相比，护士在连续夜班期间经历明显的睡眠剥夺，这种睡眠不足与轮班结束时疲劳程度的大幅增加有关。护士经理和管理员必须确保连续夜班期间有足够的班间恢复时间，以增加在床上和睡觉的时间。
方法：这项采用生态瞬时评估的前瞻性观察研究是使用从2019年6月至2021年2月在韩国医院工作的98名轮班护士收集的数据进行的。使用活动描记术记录睡眠模式。参与者通过移动链接实时报告每个夜班开始和结束时的疲劳水平。线性混合模型用于分析。
结果：护士在连续夜班中的卧床时间明显少于下班时间，睡眠时间也较短。而他们在睡眠开始后的觉醒时间在下班时间比在值班时间长得多。第二和第三个夜班日的疲劳水平高于第一个夜班日。与开始时相比，在床上和睡觉的时间较短与轮班结束时疲劳水平的增加有关。
结论：与下班时间相比，护士在连续夜班期间经历明显的睡眠剥夺，这种睡眠不足与轮班结束时疲劳程度的大幅增加有关。护士经理和管理员必须确保连续夜班期间有足够的班间恢复时间，以增加在床上和睡觉的时间。
