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The association between Working Schedule and Working Hours and Smoking Status among Korean Employees
J Korean Soc Res Nicotine Tob
Published online October 4, 2019
© 2019 The Korean Society for Research on Nicotine and Tobacco.

Ju-Ok Son , In-Sun Kang , Hong-Jun Cho *

Department of Family Medicine, Asan Medical Center, University of Ulsan College of Medicine
Correspondence to: Hong-Jun Cho, 꽌슱떆 넚뙆援 뭾궔룞 388-1 꽌슱븘궛蹂묒썝 媛젙쓽븰怨, 슦렪踰덊샇: 05505, 쟾솕: 02-3010-3812, 뙥뒪: 2-3010-3815, 씠硫붿씪:
Introduction: The working schedule and working hours are known to affect the incidence of cancer, heart disease, and cardiovascular disease, and are associated with unhealthy health behaviors. This study was conducted to evaluate the association between working schedules and working hours and smoking rates in Korean adult workers.
Methods: Based on data from the 2013 to 2017 Korea National Health and Nutrition Examination Survey, 15,904 workers aged 19 or older were studied. The work schedule was divided into a day, evening, night and shift work. And, the working hours per week were divided into 40 hrs or less, 40 to 50 hrs, 50 to 60 hrs, and 60 hrs or more. The association was assessed using multivariate logistic regression analysis.
Results: As a result of this analysis, 27.4% of the subjects were currently smoking. Women who work in the evening or night had significantly higher smoking rates than women who work during the day (OR for evening work =1.797, 95% CI=1.306-2.471 and OR for night work=6.835, 95% CI=4.075-11.461). Smoking rates according to working hours were significantly higher in both men and women who worked more than 60hrs per week(OR for >60hrs(male)=1.328, 95% CI=1.117-1.578 and OR for >60hrs(female)=1.835, 95% CI=1.247-2.701).
Conclusion: The working schedule and working hours of Korean adult workers influence the smoking rate. Tobacco control policy for the employees should consider the working schedule and working hours of the employees.
Keywords : night work, shift work, woking hours, smoking