Open AccessPerceived Sleepiness of Non‐Shift Working Men in Two Different Types of Work Organization
Author(s) -
Fukasawa Kenji,
Aikawa Hiroyuki,
Okazaki Isao,
Haratani Takashi,
Takahashi Masaya,
Nakata Akinori,
Otsuka Yasumasa,
Kaida Kosuke,
Hanada Takanobu
Publication year - 2006
Publication title -
journal of occupational health
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.664
H-Index - 59
ISSN - 1348-9585
DOI - 10.1539/joh.48.230
Subject(s) - logistic regression , shift work , work (physics) , occupational safety and health , psychology , depression (economics) , medicine , gerontology , psychiatry , engineering , economics , macroeconomics , mechanical engineering , pathology
Perceived Sleepiness of Non‐Shift Working Men in Two Different Types of Work Organization: Kenji Fukasawa, et al. Department of Basic Clinical Science and Public Health, Tokai University School of Medicine —Increased sleepiness at work is increasingly being focused on as a safety and health issue. However, research on workers’ sleepiness is very limited in scope and the characteristics of work organization, including the impact of job stress, have not been fully addressed. A questionnaire survey was conducted to investigate the prevalence of daytime sleepiness and its associated factors among non‐shift working men at two manufacturing businesses: Company A, having a rapid rate of development and growth, with 564 workers (19– 61 yr old, mean age: 32.7, response rate: 81.4%); and Company B, long established, possessing a huge production facility, with 1,654 workers (20–63 yr old, mean age: 37.1, response rate: 78.2%). The prevalence of daytime sleepiness was 11.3% in company A and 16.8% in company B. Multivariate logistic regression analysis revealed that, in company A, perceived sleepiness was associated with long sleep duration on non‐working days and high cognitive demands and, in company B, with insufficient daily sleep, single, and depression. Psychosomatic exhaustion resulting from jobs requiring high adaptivity due to rapid frequency of operational change as in company A may have the potential to become an important factor in perceived sleepiness. However, in a comparatively stable work organization, as in company B, increased sleepiness may be mainly linked to factors outside work. It is suggested that not only lifestyle and sleep habits, but also the characteristics and dynamics of a work organization should be a focus of attention when planning measures to prevent sleepiness at work.