Graduate Institute of Nursing, College of Nursing, Taipei Medical University, Taipei, Taiwan.
Biol Res Nurs. 2013 Jul;15(3):273-9. doi: 10.1177/1099800412439459. Epub 2012 Apr 3.
The study investigated the number of days off nurses working night shifts need to recover their sleep quality to the level of daytime workers during their days off. This study included 30 day-shift nurses and 32 night-shift nurses. It was conducted as a randomized clinical trial in the medical and surgical wards of a medical center in northern Taiwan in May and June 2010 using sleep diaries and sleep parameters collected by actigraphy on different workdays and days off. On workdays, the night-shift group had significantly less total sleep time (TST) on Day 5 and significantly lower sleep efficiency (SE) on Day 3 than the day-shift group. TSTs of the two groups on days off were higher than those on workdays. On the 4th consecutive day off, higher TST, a decrease in WASO, and an increase in SE suggests that the night-shift group had recovered their sleep quality to the level of the day-shift group on their days off. The SE of the night-shift group exceeded that of the day-shift group after the 4th consecutive day off, though the difference was not statistically significant in the present study. Based on these data, it is recommended that night-shift workers arrange a period of at least 4 days off after 5 consecutive night shifts and at least 5 days off if the staff who have previously worked night shifts are being assigned a set of different shifts.
本研究旨在探讨夜班护士需要休息多少天才能使睡眠质量恢复到白天工作时的水平。本研究纳入了 30 名白班护士和 32 名夜班护士。该研究于 2010 年 5 月至 6 月在台湾北部一家医疗中心的内科和外科病房进行，采用睡眠日记和活动记录仪记录不同工作日和休息日的睡眠参数，进行随机对照临床试验。在工作日，夜班组第 5 天的总睡眠时间（TST）显著少于白班组，第 3 天的睡眠效率（SE）显著低于白班组。两组在休息日的 TST 均高于工作日。在连续第 4 天休息日时，TST 增加，入睡后清醒时间（WASO）减少，SE 增加，表明夜班护士在休息日已恢复到白班的睡眠质量水平。连续第 4 天休息日之后，夜班组的 SE 超过了白班组，但本研究中差异无统计学意义。基于这些数据，建议夜班工作人员在连续上 5 个夜班后至少安排 4 天休息，如果之前上夜班的员工被安排一组不同的班次，则至少安排 5 天休息。
