Kubo Tatsuhiko
Department of Public Health, School of Medicine, University of Occupational and Environmental Health, Japan.
J UOEH. 2014 Dec 1;36(4):273-6. doi: 10.7888/juoeh.36.273.
In this study we used governmental statistic data to estimate the number of night shift workers in Japan, referring to the Labour Force Survey by the Ministry of Internal Affairs and Communications to obtain the number of employees in the workforce. We also referred to the Survey on the State of Employees' Health by the Ministry of Health, Labour and Welfare to obtain the work schedules of employees. Our study revealed that the number of night shift workers in Japan has been increasing. The prevalence of night work among Japanese employees was 13.3% in the year 1997, 17.8% in 2002, 17.9% in 2007, and 21.8% in 2012. Our estimation revealed that there are twelve million workers currently engaged in night work. The prevalance of shift workers and shift workers with night shift in Japan is also increasing.
在本研究中，我们使用政府统计数据来估算日本夜班工人的数量，参考了总务省的劳动力调查以获取劳动力中的雇员数量。我们还参考了厚生劳动省的雇员健康状况调查以获取雇员的工作时间表。我们的研究表明，日本夜班工人的数量一直在增加。1997年日本雇员中夜班工作的比例为13.3%，2002年为17.8%，2007年为17.9%，2012年为21.8%。我们的估算显示，目前有1200万工人从事夜班工作。日本轮班工人和从事夜班工作的轮班工人的比例也在增加。
