Perceived psychosocial job stress and sleep bruxism among male and female workers

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Perceived psychosocial job stress and sleep bruxism among male and female workers
Published article online:
Published article online:
10 Aug 2007
Submitted 23 August 2006; accepted 13 December 2006
Submitted 23 August 2006; accepted 13 December 2006
To cite this article: Akinori Nakata, Masaya Takahashi, Tomoko Ikeda, Minoru Hojou, Shunichi Araki
Perceived psychosocial job stress and sleep bruxism among male and female workers
Community Dentistry and Oral Epidemiology (OnlineEarly Articles).
doi:10.1111/j.1600-0528.2007.00388.x
Community Dentistry and Oral Epidemiology
Blackwell Synergy

Akinori Nakata11National Institute of Occupational Safety and Health, Kawasaki, Japan, Masaya Takahashi11National Institute of Occupational Safety and Health, Kawasaki, Japan, Tomoko Ikeda22Department of Nursing, School of Health Sciences, Ibaraki Prefectural University of Health Sciences, Ibaraki, Japan, Minoru Hojou33Ota Regional Occupational Health Center, Tokyo, Japan and Shunichi Araki11National Institute of Occupational Safety and Health, Kawasaki, Japan
Akinori Nakata, Division of Applied Research and Technology, MS-C24, National Institute for Occupational Safety and Health, 4676 Columbia Parkway, Cincinnati, OH 45226, USA
Tel.: +1 513 533 8628
Fax: +1 513 533 8596
e-mail: nakataa-tky@umin.ac.jp

This study was performed at the National Institute of Occupational Safety and Health, Japan.

Nakata A, Takahashi M, Ikeda T, Hojou M, Araki S. Perceived psychosocial job stress and sleep bruxism among male and female workers. Community Dent Oral Epidemiol 2007; xx: xxxÒxxx. © 2007 The Authors.

Abstract

Objective: Psychosocial job stress has been associated with sleep disturbances, but its association with sleep bruxism (SB), the stereotype movement disorder related to sleep, is not well understood. The aim of this epidemiological study was to examine the relationship between psychosocial job stress and SB.

Methods: 1944 male and 736 female factory workers participated in this study (response rate 78.1%). Perceived job stress was evaluated with the Japanese version of the generic job stress questionnaire, which covered 13 job stress variables. SB was assessed by the question, ÎDo you grind or clench your teeth during your sleep or has anyone in your family told you that you grind your teeth during your sleep?Ì Response options were ÎneverÌ, ÎseldomÌ, ÎsometimesÌ or ÎoftenÌ. SB was considered present if the answer was ÎsometimesÌ or ÎoftenÌ.

Results: Overall, 30.9% of males and 20.2% of females reported SB. In males, workers with low social support from supervisors [odds ratio (OR) = 1.34, 95% confidence interval (CI) 1.08Ò1.68] or from colleagues (OR 1.47, 95% CI 1.17Ò1.83), and high depressive symptoms (OR 1.60, 95% CI 1.26Ò2.03) had a significantly increased risk of SB after controlling for confounders. By contrast, no significant association was found in females.

Conclusions: We conclude that SB is weakly associated with some aspects of job stress in men but not in women among the Japanese working population.

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