Benchmark dose of working hours in relation to subjective fatigue symptoms in Japanese male workers

Annals of Epidemiology
Yasushi SuwazonoKoji Nogawa

Abstract

We used a multiple logistic regression model to calculate benchmark doses (BMDs) and their 95% lower confidence bound (BMDL) of working hours for subjective fatigue symptoms. A self-administered questionnaire survey was conducted in 3069 male daytime workers between the ages of 18 and 60 years who worked in a Japanese steel company. Dependent variables were positive findings for eight properties by using the Cumulative Fatigue Symptoms Index (CFSI): decreased vitality, general fatigue, physical disorders, irritability, decreased willingness to work, anxiety, depressive feelings, and chronic tiredness. Independent variables were daily working hours, age, lifestyle factors, working conditions (type of work and number of holidays), marital status, and living arrangements. Using significant parameters for working hours and those for other covariates, BMD/BMDL of working hours was calculated for the corresponding property of the CFSI. Additionally, benchmark response (BMR) was set at 5% or 10%. The BMD/BMDL of working hours per day with a BMR of 5% were 11.8/10.8 (irritability), 11.4/10.2 (anxiety), and 11.2/10.6 (chronic tiredness), and those with a BMR of 10% were 14.2/12.6 (irritability), 14.2/12.1 (anxiety), and 13.1/12.2 (chron...Continue Reading

References

Jan 1, 1985·Social Science & Medicine·C L Cooper, J Roden
Oct 1, 1984·Fundamental and Applied Toxicology : Official Journal of the Society of Toxicology·K S Crump
Jan 1, 1994·Preventive Medicine·S Ezoe, K Morimoto
Oct 1, 1996·Scandinavian Journal of Work, Environment & Health·S Maruyama, K Morimoto
Jun 1, 1997·Occupational and Environmental Medicine·A SpurgeonC L Cooper
Jan 1, 1997·International Journal of Health Services : Planning, Administration, Evaluation·K Nishiyama, J V Johnson
Aug 7, 1998·Psychotherapy and Psychosomatics·R EmdadS Cizinsky
Sep 18, 1998·BMJ : British Medical Journal·S Sokejima, S Kagamimori
Jul 9, 1999·Journal of Epidemiology and Community Health·N KawakamiH Ishibashi
Mar 8, 2000·Environmental Health Perspectives·K S CrumpT W Clarkson
Mar 18, 2000·Toxicology Letters·E Budtz-JorgensenP Weihe
Apr 12, 2001·Journal of Epidemiology and Community Health·N NakanishiK Tatara
Aug 14, 2001·Industrial Health·J ParkN Hisanaga
Sep 12, 2001·Biometrics·E Budtz-JørgensenP Grandjean
Jun 29, 2002·Risk Analysis : an Official Publication of the Society for Risk Analysis·Katsuyuki MurataPhilippe Grandjean
Jun 28, 2003·Scandinavian Journal of Work, Environment & Health·Monique van der Hulst
Nov 5, 2003·Critical Reviews in Toxicology·Agneta Falk FilipssonKatarina Victorin
Feb 5, 2004·The Journal of Pediatrics·Katsuyuki MurataPhilippe Grandjean
Dec 8, 2004·Journal of Psychosomatic Research·T AkerstedtGöran Kecklund
Feb 4, 2005·Biometals : an International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine·Taiyi JinGunnar F Nordberg

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Citations

Aug 23, 2007·Behavioral Medicine·Mirei DochiKoji Nogawa
Sep 17, 2008·Risk Analysis : an Official Publication of the Society for Risk Analysis·Yasushi SuwazonoKouichi Sakata
Oct 26, 2010·Chronobiology International·Kumihiko TanakaYasushi Suwazono

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