Department of Preventive Medicine, College of Medicine, Seoul National University, Seoul, Republic of Korea.
Department of Psychiatry, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Republic of Korea.
J Occup Health. 2019 Sep;61(5):358-367. doi: 10.1002/1348-9585.12059. Epub 2019 May 3.
Reducing human errors caused by daytime sleepiness among train drivers is important to prevent train accidents. Our purpose of the study was to investigate the association among sleep, workplace sleeping environments, and human errors.
We recruited 144 South Korean train drivers belongs to the Korean Railroad Corporation. This cross-sectional data was analyzed to investigate the association of insomnia (insomnia severity index), sleep quality (Pittsburgh sleep quality index), obstructive sleep apnea (Berlin questionnaire), and daytime sleepiness (Epworth scale) with human error and near-miss experiences. We examined whether human error and near-miss events were associated with various sleeping environments at work and at home after adjusting for the sleep indices.
The experience of human errors was associated with insomnia and daytime sleepiness, and near-miss events were associated with insomnia among South Korean drivers. Sleeping environments including cold temperature and odor were related to both human errors and near-miss events among South Korean train drivers, after adjusted for age, working years, shiftwork, obesity, smoking, binge drinking, regular exercise, caffeine consumption, sleep quality, severity of insomnia, obstructive sleep apnea, and daytime sleepiness.
The train drivers' workplace sleeping environment is significantly associated with human error events and near-miss events after adjusting for sleep quality, insomnia, obstructive sleep apnea, and daytime sleepiness. To prevent train accidents caused by human errors, more attention is necessary for improving workplace sleeping environments.
减少火车司机因白天困倦而导致的人为失误对于防止火车事故至关重要。本研究旨在调查睡眠、工作场所睡眠环境与人为失误之间的关系。
我们招募了隶属于韩国铁道公社的 144 名韩国火车司机。本横断面数据分析旨在调查失眠（失眠严重指数）、睡眠质量（匹兹堡睡眠质量指数）、阻塞性睡眠呼吸暂停（柏林问卷）和白天嗜睡（Epworth 量表）与人为失误和险些失误经历之间的关联。我们在调整了睡眠指数后，检查了人为失误和险些事件是否与工作和家中的各种睡眠环境有关。
人为失误的经历与失眠和白天嗜睡有关，险些事件与韩国司机的失眠有关。调整年龄、工作年限、轮班工作、肥胖、吸烟、狂饮、定期锻炼、咖啡因摄入、睡眠质量、失眠严重程度、阻塞性睡眠呼吸暂停和白天嗜睡后，睡眠环境包括低温和异味与韩国火车司机的人为失误和险些事件都有关。
在调整了睡眠质量、失眠、阻塞性睡眠呼吸暂停和白天嗜睡后，火车司机的工作场所睡眠环境与人为失误事件和险些事件显著相关。为了防止人为失误导致的火车事故，需要更加关注改善工作场所的睡眠环境。
