Association between duration of daily visual display terminal work and insomnia among local government clerks in Japan
Version of Record online: 27 DEC 2007
Copyright © 2007 Wiley-Liss, Inc.
American Journal of Industrial Medicine
Volume 51, Issue 2, pages 148–156, February 2008
How to Cite
Yoshioka, E., Saijo, Y., Fukui, T., Kawaharada, M. and Kishi, R. (2008), Association between duration of daily visual display terminal work and insomnia among local government clerks in Japan. Am. J. Ind. Med., 51: 148–156. doi: 10.1002/ajim.20543
- Issue online: 10 JAN 2008
- Version of Record online: 27 DEC 2007
- Manuscript Accepted: 2 OCT 2007
- Scientific Research from the Ministry of Education, Culture, Sports, Science and Technology of Japan. Grant Number: 18590585
- Scientific Research from the Ministry of Health, Labour and Welfare of Japan. Grant Number: H-14-Iryou-022
- visual display terminals;
- sleep-related symptoms;
- Athens insomnia scale;
Visual display terminal (VDT) work has become very common among office workers in developed countries; however, studies investigating the association between the duration of daily VDT work and insomnia are limited.
The aim of this study was to clarify the association between the duration of daily VDT work and sleep disturbances. We investigated 2,417 clerks (men, 2,030; women, 387) at local government offices. Sleep disturbances were evaluated using the Athens Insomnia Scale (AIS).
VDT work of 6 hr or more per day was significantly associated with insomnia (odds ratio = 1.62, 95% confidence interval: 1.16–2.27) and, in particular, caused problems with “total sleep duration” and “sleepiness during the day” among sleep-related symptoms, even after adjusting for possible confounding factors.
Our study suggested that VDT work of 6 hr or longer per day was related to insomnia. Am. J. Ind. Med. 51:148–156, 2008. © 2007 Wiley-Liss, Inc.