Cardiovascular disease (CVD) risk in train drivers is associated with health conditions that can result in sudden incapacity. Drivers are at high risk on several CVD risk factors with research suggesting that sleep may predict CVD risk, however this relationship has not yet been explored. This study investigated the link between sleep and CVD risk, in relation to hours of work day and days off sleep. N=309 Australian drivers completed a cross-sectional survey. A CVD risk score was calculated by summing scores from behavioural and biomedical risk factors. Sleep was most frequently cited as the main reason for decline in perceived health status. Main analyses showed that shorter work day sleep (M=5.79 h) was a significant predictor of increased CVD risk (p=0.013). This relationship was moderated by days off sleep, such that when days off sleep (M=8.17 h) was higher, the effect of work day sleep on CVD risk was weaker (p=0.047). Findings indicate the amount of sleep a driver obtains on non-work days may compensate for adverse health outcomes. Successful management of fatigue in safety critical occupations appears essential not only for the prevention of safety hazards, but also for the long-term health of shift workers. Further investigation is warranted.

中文翻译：

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为心脏健康而睡眠：在澳大利亚的火车司机中，研究工作日睡眠，不休息日与心血管疾病风险之间的关系。

火车司机的心血管疾病（CVD）风险与可能导致突然丧失工作能力的健康状况相关。驾驶员在几种CVD危险因素上处于高风险，研究表明睡眠可能预测CVD危险，但是尚未探讨这种关系。这项研究调查了睡眠与CVD风险之间的联系，这些风险与工作日数和休息日有关。N = 309澳大利亚驾驶员完成了横断面调查。通过将行为和生物医学风险因素的得分相加来计算CVD风险得分。睡眠最常被认为是感知健康状况下降的主要原因。主要分析表明，较短的工作日睡眠时间（M = 5.79小时）是CVD风险增加的重要预测指标（p = 0.013）。这种关系可以通过休息日来缓解，例如休息日（M = 8。17 h）较高，工作日睡眠对CVD风险的影响较弱（p = 0.047）。研究结果表明，驾驶员在非工作日获得的睡眠量可以弥补不利的健康后果。在安全关键型职业中成功管理疲劳似乎不仅对预防安全隐患至关重要，而且对于轮班工人的长期健康也至关重要。有必要进行进一步调查。