Annals of Occupational and Environmental Medicine

Research Article

Effect of Long Working Hours on Self-reported Hypertension among Middle-aged and Older Wage Workers: Dong Hyun Yoo, Mo-yeol Kang, Domyung Paek, Bokki Min, Sung-il Cho; Ann Occup Environ Med 2014;26:25-25. Published online September 3, 2014; DOI: https://doi.org/10.1186/s40557-014-0025-0

Objectives

Many studies have reported an association between overwork and hypertension. However, research on the health effects of long working hours has yielded inconclusive results. The objective of this study was to identify an association between overtime work and hypertension in wage workers 45 years and over of age using prospective data.

Methods

Wage workers in Korea aged 45 years and over were selected for inclusion in this study from among 10,254 subjects from the Korean Longitudinal Study of Ageing. Workers with baseline hypertension and those with other major diseases were excluded. In the end, a total of 1,079 subjects were included. A Cox proportional hazards model was used to calculate hazard ratios and adjust for baseline characteristics such as sex, age, education, income, occupation, form of employment, body mass index, alcohol habit, smoking habit, regular exercise, and number of working days per week. Additional models were used to calculate hazard ratios after gender stratification.

Results

Among the 1,079 subjects, 85 workers were diagnosed with hypertension during 3974.2 person-months. The average number of working hours per week for all subjects was 47.68. The proportion of overtime workers was 61.0% (cutoff, 40 h per week). Compared with those working 40 h and less per week, the hazard ratio of subjects in the final model, which adjusted for all selected variables, working 41-50 h per week was 2.20 (95% confidence interval [CI], 1.19–4.06), that of subjects working 51-60 h per week was 2.40 (95% CI, 1.07–5.39), and that of subjects working 61 h and over per week was 2.87 (95% CI, 1.33–6.20). In gender stratification models, the hazard ratio of the females tended to be higher than that of the males.

Conclusion

As the number of working hours per week increased, the hazard ratio for diagnosis of hypertension significantly increased. This result suggests a positive association between overtime work and the risk of hypertension.

Citations

Citations to this article as recorded by

Systematic review and meta-analysis of the association between long working hours and hypertension risk
Joonho Ahn, Ji-Hun Song, In-Soo Shin, In Young Cho, Mo-Yeol Kang
Journal of Epidemiology and Community Health.2024; 78(6): 367. CrossRef
Risk prediction model of self-reported hypertension for telemedicine based on the sociodemographic, occupational and health-related characteristics of seafarers: a cross-sectional epidemiological study
Getu Gamo Sagaro, Ulrico Angeloni, Gopi Battineni, Nalini Chintalapudi, Marzio Dicanio, Mihiretu M Kebede, Claudia Marotta, Giovanni Rezza, Andrea Silenzi, Francesco Amenta
BMJ Open.2023; 13(10): e070146. CrossRef
Unveiling the Global Surge: Unraveling the Factors Fueling the Spread of Karoshi Syndrome
Haitham Al-Madhagi
Risk Management and Healthcare Policy.2023; Volume 16: 2779. CrossRef
Long working hours associated with elevated ambulatory blood pressure among female and male white-collar workers over a 2.5-year follow-up
Mahée Gilbert-Ouimet, Xavier Trudel, Denis Talbot, Michel Vézina, Alain Milot, Chantal Brisson
Journal of Human Hypertension.2022; 36(2): 207. CrossRef
Occupational risk factors for hypertension
Mo-Yeol Kang
Journal of Hypertension.2022; 40(11): 2102. CrossRef
The combined effect of long working hours and individual risk factors on cardiovascular disease: An interaction analysis
Wanhyung Lee, Jongin Lee, Hyoung-Ryoul Kim, Yu Min Lee, Dong-Wook Lee, Mo-Yeol Kang
Journal of Occupational Health.2021;[Epub] CrossRef
Dose–response relationship between working hours and hypertension
Hao Cheng, Xuan Gu, Zhenan He, Yanqiu Yang
Medicine.2021; 100(16): e25629. CrossRef
Occupational Physical Activity and New-Onset Hypertension: A Nationwide Cohort Study in China
Qinqin Li, Rui Li, Shaojie Zhang, Yuanyuan Zhang, Panpan He, Zhuxian Zhang, Mengyi Liu, Chun Zhou, Huan Li, Chengzhang Liu, Xianhui Qin
Hypertension.2021; 78(1): 220. CrossRef
Working hours are closely associated with depressive mood and suicidal ideation in Korean adults: a nationwide cross-sectional study
Sangsoo Han, Yujin Ko, Ji Eun Moon, Young Soon Cho
Scientific Reports.2021;[Epub] CrossRef
The negative impact of long working hours on mental health in young Korean workers
Sungjin Park, Hyungdon Kook, Hongdeok Seok, Jae Hyoung Lee, Daeun Lim, Dong-Hyuk Cho, Suk-Kyu Oh, Sergio A. Useche
PLOS ONE.2020; 15(8): e0236931. CrossRef
Cross-sectional association between long working hours and liver function: the Kangbuk Samsung Health Study
Eunchan Mun, Woncheol Lee, Min-Woo Nam, Hyun-Il Kim, Hyeongcheol Kim, Yesung Lee, Soyoung Park
BMJ Open.2020; 10(12): e041595. CrossRef
Excessive work hours and hypertension: Evidence from the NIOSH survey data
Takahiko Kudo, Michael H. Belzer
Safety Science.2020; 129: 104813. CrossRef
Long Working Hours and the Prevalence of Masked and Sustained Hypertension
Xavier Trudel, Chantal Brisson, Mahée Gilbert-Ouimet, Michel Vézina, Denis Talbot, Alain Milot
Hypertension.2020; 75(2): 532. CrossRef
Long work hours and decreased glomerular filtration rate in the Korean working population
Dong-wook Lee, Jongin Lee, Hyoung-Ryoul Kim, Kyo Yeon Jun, Mo-Yeol Kang
Occupational and Environmental Medicine.2020; 77(10): 699. CrossRef
Long working hours, anthropometry, lung function, blood pressure and blood-based biomarkers: cross-sectional findings from the CONSTANCES study
Marianna Virtanen, Linda Magnusson Hansson, Marcel Goldberg, Marie Zins, Sari Stenholm, Jussi Vahtera, Hugo Westerlund, Mika Kivimäki
Journal of Epidemiology and Community Health.2019; 73(2): 130. CrossRef
Working Hours and Risk of Acute Myocardial Infarction and Stroke Among Middle-Aged Japanese Men　― The Japan Public Health Center-Based Prospective Study Cohort II ―
Rie Hayashi, Hiroyasu Iso, Kazumasa Yamagishi, Hiroshi Yatsuya, Isao Saito, Yoshihiro Kokubo, Ehab S. Eshak, Norie Sawada, Shoichiro Tsugane
Circulation Journal.2019; 83(5): 1072. CrossRef
Long weekly working hours and ischaemic heart disease: a follow-up study among 145 861 randomly selected workers in Denmark
Harald Hannerz, Ann Dyreborg Larsen, Anne Helene Garde
BMJ Open.2018; 8(6): e019807. CrossRef
Long Working Hours and Risk of Cardiovascular Disease
Marianna Virtanen, Mika Kivimäki
Current Cardiology Reports.2018;[Epub] CrossRef
Clinical significance of stress-related increase in blood pressure: current evidence in office and out-of-office settings
Masanori Munakata
Hypertension Research.2018; 41(8): 553. CrossRef
Secular trends in salt and soy sauce intake among Chinese adults, 1997–2011
Lianlong Yu, Suyun Li, Jinshan Zhao, Junli Zhang, Liansen Wang, Kebo Wang
International Journal of Food Sciences and Nutrition.2018; 69(2): 215. CrossRef
The Association Between Long Working Hours and High-Sensitivity C-Reactive Protein in Older Aged Individuals
Jongin Lee, Hyoung-Ryoul Kim
Journal of Occupational & Environmental Medicine.2018; 60(9): 775. CrossRef
“Back Home, People Say America is Heaven”: Pre-Migration Expectations and Post-Migration Adjustment for Liberians in Pittsburgh
Yolanda Covington-Ward
Journal of International Migration and Integration.2017; 18(4): 1013. CrossRef
Occupational Disparities in the Association between Self-Reported Salt-Eating Habit and Hypertension in Older Adults in Xiamen, China
Manqiong Yuan, Wei Chen, Bogang Teng, Ya Fang
International Journal of Environmental Research and Public Health.2016; 13(1): 148. CrossRef
The association between long working hours and hearing impairment in noise unexposed workers: data from the 5th Korea National Health and Nutrition Examination Survey (KNHANES 2010–2012)
Jung-Woo Park, Jin-Soo Park, Seyoung Kim, Minkyu Park, Hyunrim Choi, Sinye Lim
Annals of Occupational and Environmental Medicine.2016;[Epub] CrossRef
Dose–Response Relation Between Work Hours and Cardiovascular Disease Risk
Sadie H. Conway, Lisa A. Pompeii, Robert E. Roberts, Jack L. Follis, David Gimeno
Journal of Occupational & Environmental Medicine.2016; 58(3): 221. CrossRef
Association of Work-related Characteristics and Hypertension among White Collar Workers
Chae-Bong Kim, KyooSang Kim
Journal of Korean Society of Occupational and Environmental Hygiene.2015; 25(3): 418. CrossRef

241 View
2 Download
32 Web of Science
26 Crossref

Original Article

Association between Physical Workload and Work-related Back Pain: A Nationwide Study: Jae Il Oh, Dong Hyun Yoo, Do Myung Paek, Jung Sun Park, Sung Il Cho; Korean Journal of Occupational and Environmental Medicine 2011;23(3):298-308. Published online September 30, 2011; DOI: https://doi.org/10.35371/kjoem.2011.23.3.298

Abstract PDF

OBJECTIVES
To date, no population-based epidemiological studies have estimated the association between physical workload (standing or walking, carrying heavy loads, carrying people, repetitive hand or arm movements, wearing protective equipment) and work-related back pain in Korea. The purpose of this study was to evaluate the relationship between physical workload and work-related back pain using a nationwide survey.
METHODS
We analyzed data obtained from working men and women age 15 to 64 (n=10,043) who participated in the 2006 national working condition survey of random sample workers in Korea. Using both simple and multiple logistic regression analysis, the association between physical workload and work-related back pain was evaluated.
RESULTS
Carrying heavy loads, repetitive hand or arm movements, and wearing protective equipment were associated with an increased risk of work-related back pain.
CONCLUSIONS
This study identifies that an increased risk of work-related back pain related to the nature and intensity of the physical workload of the general working population in Korea. We also found a strong association between repetitive hand or arm movements and back pain.

Citations

Citations to this article as recorded by

A study on Related Factor and Knowledge of Back Pain in Workers Employed at Cement factory
Gi-Yeol Kim, Jung-Lim Oh, Kyoung-Ok Hwang
Journal of the Korea Academia-Industrial cooperation Society.2015; 16(1): 536. CrossRef

64 View
0 Download
1 Crossref

Original Article

Respiratory Symptoms, Cognitions about Working Environments and Pulmonary Functions in Coal Mine Workers: Dong Hyun Yoon, Hae Sung Nain, Jun Ho Shin, Myung Ho Son, Myung Ha]f Lee, Seok Joon Sohn, Byong Woo Kirn; Korean Journal of Occupational and Environmental Medicine 1994;6(2):302-315. Published online September 30, 1994; DOI: https://doi.org/10.35371/kjoem.1994.6.2.302

Abstract PDF: To assess the adverse effects of dust on pulmonary function and to determine the association between subjective respiratory symptoms, cognitions about working environments and pulmonary functions, the study was conducted on 719 coal mine workers (395 workers on direct part, 324 workers on indirect part) being employed in a coal mine industry located in Hwa-Soon area. Questionnaires on respiratory symptoms and cognitions about working environments were filled out by themselves, and pulmonary function test was given by trained doctors. The results obtained were as follows ; 1. Significantly increased subjective respiratory symptoms prevalence were found in the workers on direct part comparing to workers on indirect part, and symptoms prevalence rate was higher in sputum, coughing, respiratory difficulty, palpitation and chest pain in order. 2. Significantly increased cognitions degree about working environments were found in workers on direct part comparing to workers on indirect part, and the degree was higher in dust concentration, temperature, working density and humidity in order. 3. FVC, FEV(0.5), FEF(200-1200ml) and FEF(25-75%) were lower for workers on direct part than that for workers on indirect part. 4. In workers on direct and indirect part, lung functions except FEF(200-l200ml) for the high subjective symptom group was smaller than that for the low group. There was not significane statistically, but the significane was found in FVC and FEVt in total coal workers. 5. In workers on direct part, FEVt and FEF(25-75%) for high cognition group about working environmental conditions was smaller than that for the low group but other lung functions were reversed. But in workers on indirect part, similar results was found and the significance was found in FEV(0.5) FEF(25-75%) and FEF(200-1200ml) in total coal workers. 6. Lung functions had negative correlation between sputum and FEF(200-1200ml).

50 View
0 Download

First
Prev
Page of 1
Next
Last

Search