Centre for Sleep Research, University of South Australia, GPO Box 2471, Adelaide, South Australia 5001, Australia.
Accid Anal Prev. 2012 Mar;45 Suppl:32-5. doi: 10.1016/j.aap.2011.09.022. Epub 2011 Oct 24.
There are many factors that may affect the sleep behaviour and subsequent fatigue risk of shift workers. In the Australian rail industry the emphasis is primarily on the impact of working time on sleep. The extent to which factors other than working time might affect the sleep behaviour of employees in the large and diverse Australian rail industry is largely unknown. The present study used sleep, work and fatigue diaries completed for two weeks, in conjunction with actigraphy, to understand the contribution of demographic and health factors to sleep behaviour in 40 rail safety workers. Both shift type and having dependents were significant predictors of sleep duration (P<.05). Sleep duration was greatest prior to night shifts, followed by afternoon shifts and morning shifts. Participants with dependents got significantly less sleep than participants without dependents. Both timing of sleep and smoking were significant predictors of sleep quality (P<.05). Day sleeps were associated with lower subjective sleep quality than night sleeps and smokers reported poorer sleep quality than non-smokers. These findings indicate that factors other than working time have the potential to influence both the sleep duration and subjective sleep quality of rail safety workers.
有许多因素可能会影响轮班工人的睡眠行为和随后的疲劳风险。在澳大利亚铁路行业，重点主要放在工作时间对睡眠的影响上。除了工作时间之外，其他因素在多大程度上可能会影响澳大利亚铁路行业中员工的睡眠行为，这在很大程度上是未知的。本研究使用了两周的睡眠、工作和疲劳日记，并结合活动记录仪，来了解人口统计学和健康因素对 40 名铁路安全工作人员睡眠行为的贡献。轮班类型和有家属这两个因素都显著预测了睡眠时间（P<.05）。睡眠时间在夜班之前最长，其次是下午班和早班。有家属的参与者比没有家属的参与者睡眠时间明显减少。睡眠时间和吸烟都显著预测了睡眠质量（P<.05）。白天小睡的主观睡眠质量比夜间小睡差，吸烟者的睡眠质量比不吸烟者差。这些发现表明，除了工作时间之外，其他因素有可能影响铁路安全工作人员的睡眠时间和主观睡眠质量。
