Annals of Occupational and Environmental Medicine

Research Article

The association between long working hours and the metabolic syndrome: evidences from the 5th Korean National Health and Nutrition Examination Survey of 2010 and 2012: Jae Uk Jeong, Man Joong Jeon, Joon Sakong; Ann Occup Environ Med 2014;26:53. Published online December 21, 2014; DOI: https://doi.org/10.1186/s40557-014-0053-9

Objectives

This study was conducted in order to evaluate the association between the working hours of Korean employees and the metabolic syndrome and the effects of long working hours on metabolic syndrome based on the 5th Korean National Health and Nutrition Examination Survey (2010-2012).

Methods

Based on the 5th Korean National Health and Nutrition Examination Survey (2010-2012), 4,456 Korean employees without shift work, aged over 15, who work 30 hours or more per week were targeted in this study. The association between the general characteristics, including age, smoking, alcohol drinking, exercise, and the metabolic syndrome criteria defined by International Diabetes Federation (IDF) and weekly working hours were analyzed. In addition, the association between weekly working hours and the metabolic syndrome of the subjects stratified by gender was analyzed through multiple logistic regression analyses and generalized linear mixed model after adjusting the general characteristics.

Results

In the results of stratified analysis by gender, in male subjects, in comparison with the 30-39 weekly working hours group, there were no significant adjusted odds ratios to the other working hours groups. In female subjects, in comparison with the 30-39 weekly working hours group, there were no significant adjusted odds ratios to the other working hours groups. In addition, no trend associations were observed among weekly working hour groups in both stratified genders.

Conclusion

No significant differences in prevalence of metabolic syndrome of the subjects stratified by gender were found according to weekly increasing working hours. However, due to some limitations of this study, further prospective studies may be necessary for verification.

Citations

Citations to this article as recorded by

Impact of Reduced Working Hours and Night Work Hours on Metabolic Syndrome: A Quasi-Experimental Study
Hye-Eun Lee, Ichiro Kawachi
Safety and Health at Work.2023; 14(1): 59. CrossRef
Association between shift work or long working hours with metabolic syndrome: a systematic review and dose–response meta-analysis of observational studies
Yihui Wang, Li Yu, Yinyan Gao, Lili Jiang, Lin Yuan, Pengju Wang, Yanwen Cao, Xuping Song, Long Ge, Guowu Ding
Chronobiology International.2021; 38(3): 318. CrossRef
Mediation analysis of dietary habits, nutrient intakes, daily life in the relationship between working hours of Korean shift workers and metabolic syndrome : the sixth (2013 ~ 2015) Korea National Health and Nutrition Examination Survey
Yoona Kim, Hyeon Hee Kim, Dong Hoon Lim
Journal of Nutrition and Health.2018; 51(6): 567. CrossRef
Efficacy of high dose vitamin D supplementation in improving serum 25-hydroxyvitamin D among laboratory personnel working at the Nepal National Center for Rheumatic Diseases
Mohan Giri, Bibhuti Upreti, Rakshya Joshi, Jayanti Rai, Binit Vaidya
Biomedical Reports.2017;[Epub] CrossRef
Short sleep duration, shift work, and actual days taken off work are predictive life-style risk factors for new-onset metabolic syndrome: a seven-year cohort study of 40,000 male workers
Osamu Itani, Yoshitaka Kaneita, Mikiko Tokiya, Maki Jike, Atsushi Murata, Sachi Nakagome, Yuichiro Otsuka, Takashi Ohida
Sleep Medicine.2017; 39: 87. CrossRef
The association between long working hours and metabolic syndrome remains elusive
Adriano M. Pimenta, Miguel A. Martinez-Gonzalez
The European Journal of Public Health.2016; 26(3): 377. CrossRef

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Original Article

Influence of Job Stress Change on Body Mass Index (BMI) and Waist Circumference among Male White-Collar Workers: A Two-Year Longitudinal Study: Jiwon Kim, Hyoung Ryoul Kim, Se Eun Kim, Sung Mi Jang, Jung Wan Koo; Korean Journal of Occupational and Environmental Medicine 2012;24(2):180-188. Published online June 30, 2012; DOI: https://doi.org/10.35371/kjoem.2012.24.2.180

Abstract PDF

OBJECTIVES
To reveal the influence of job stress change on body mass index (BMI) and waist circumference in white-collar male workers.
METHODS
A total of 277 male workers in a Korean R&D company were enrolled between 2008 and 2010. Baseline and follow-up data were collected with structured self-administered questionnaires and anthropometric measurements by nurses. The questionnaire survey included general and work-related characteristics and the Korean Occupational Stress Scale-Short Form (KOSS-SF). The job stress scores in each examination were dichotomized at the median values for the Korean workers and categorized into four groups as follows: Group I: Both low job stress (2008, 2010), Group II: High job stress (2008) & low job stress (2010), Group III: Low job stress (2008) & high job stress (2010), Group IV: Both high job stress (2008, 2010). Multiple logistic regression modeling was used to determine the influence of job stress change on BMI and waist circumference.
RESULTS
The adjusted odds ratio for the change in waist circumference above the 75th percentile for Group IV in 'job demand' increased more than in Group I (OR = 2.54 95% CI=1.06~5.55). Also, Group IV in 'job demand' has higher odds ratio for change in BMI above the 75th percentile than Group I (OR=2.25 95% CI=1.01~5.00). Adjusted odds ratios comparing Group II to Group I for the change in waist circumference above the 75th percentile were 0.36 (95% CI=0.15~0.87) in 'inadequate social support', 0.12 (95% CI=0.02~0.98) in 'lack of reward', 0.25 (95% CI=0.08~0.80) in 'total score', respectively.
CONCLUSIONS
These results suggest that sustained high job control is a risk factor for abdominal obesity and weight gain. Also, diminished job stress has a negative influence on change in abdominal obesity. Further studies are required to establish job stress intervention plans.

Citations

Citations to this article as recorded by

The association between occupational stress level and health-related productivity loss among Korean employees
Jonghee Chung, Jin-Hyo Kim, Jae Yoon Lee, Hee Seok Kang, Dong-wook Lee, Yun-Chul Hong, Mo-Yeol Kang
Epidemiology and Health.2022; 45: e2023009. CrossRef
Factors affecting on stages of change in exercise behavior of local government officials based on Transtheoretical Model
Min-ju Je, Bohyun Park
Korean Journal of Health Education and Promotion.2021; 38(5): 21. CrossRef
Converged Study of Influencing Factors on Occupational Stress in Workers
Eun Kyung Lee, Jin-Hwa Park
Journal of the Korea Convergence Society.2016; 7(3): 15. CrossRef
Effects of Lumbar Stabilization Exercise Program on the Ratio of Abdominal and Back Muscle Strength in White Collar Workers
Bo-Ram Kim, Sun-Wook Park, Han-Suk Lee
The Journal of Korean Physical Therapy.2015; 27(6): 419. CrossRef

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