scholarly journals Association between Long Working Hours and Depressive Symptoms among Interns and Residents in South Korea-2014 Korea Interns & Residents Survey

2015 ◽  
Vol 25 (2) ◽  
pp. 236-243 ◽  
Author(s):  
Ji-Hwan Kim ◽  
Jaehong Yoon ◽  
Seung-Sup Kim
Keyword(s):  
Depressive Symptoms ◽  
South Korea ◽  
Working Hours ◽  
Long Working Hours ◽  
Interns And Residents

scholarly journals Cross-sectional association between long working hours and liver function: the Kangbuk Samsung Health Study

BMJ Open ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. e041595
Author(s):  
Eunchan Mun ◽  
Woncheol Lee ◽  
Min-Woo Nam ◽  
Hyun-Il Kim ◽  
Hyeongcheol Kim ◽  
...  
Keyword(s):  
General Population ◽  
Hepatitis B ◽  
Liver Function ◽  
South Korea ◽  
Hepatitis B Surface Antigen ◽  
Working Hours ◽  
Health Study ◽  
Health Examination ◽  
Cross Sectional ◽  
Long Working Hours

ObjectivesAlthough the effects of long working hours on liver function remain unclear, in South Korea, there is a social perception that long working hours are associated with poor liver function. Thus, long working hours have recently become a major issue. This study aimed to determine the association between long working hours and liver function, as indicated by the alanine transaminase (ALT) levels.DesignCross-sectional study.SettingLarge university hospitals in Seoul and Suwon, South Korea.ParticipantsWorkers in formal employment who underwent a comprehensive health examination at the Kangbuk Samsung Hospital Total Healthcare Centre clinics in Seoul and Suwon, South Korea, between January 2011 and December 2018. Of the 386 488 participants, 212 421 met the inclusion criteria and were included in the analysis.Primary outcome measureALT elevation.ResultsThe participants were predominantly well-educated (86.1%), male (69.3%) and in their 30s (49.6%). In total, 13.4% of the participants presented ALT elevation (>40 IU/L). There was no significant association between working hours and ALT elevation in the general population and in the hepatitis B surface antigen (HBsAg)-negative group. Conversely, in the HBsAg-positive group, working >60 hours per week compared with 35–40 hours per week was significantly associated with ALT elevation. The association was more pronounced in those with ALT levels >80 IU/L (OR 1.94, 95% CI 1.24 to 3.01) than in those with ALT levels >40 IU/L (OR: 1.45, 95% CI 1.20 to 1.75). The p values for trend were <0.05.ConclusionsLong working hours were associated with ALT elevation only in hepatitis B virus carriers and not in the general population. Provided that there is adherence to the legal working hours, there is no need to further restrict working hours for liver health, irrespective of HBsAg status.

Long working hours and depressive symptoms: moderation by gender, income, and job status

2021 ◽  
Author(s):  
Eunsoo Choi ◽  
Kwan Woo Choi ◽  
Hyun-Ghang Jeong ◽  
Moon-Soo Lee ◽  
Young-Hoon Ko ◽  
...  
Keyword(s):  
Depressive Symptoms ◽  
Working Hours ◽  
Job Status ◽  
Long Working Hours

scholarly journals Cross-sectional association between long working hours and endoscopic gastritis: the Kangbuk Samsung Health Study

BMJ Open ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. e050037
Author(s):  
Eunchan Mun ◽  
Yesung Lee ◽  
Woncheol Lee ◽  
Soyoung Park
Keyword(s):  
South Korea ◽  
Atrophic Gastritis ◽  
Intestinal Metaplasia ◽  
Working Hours ◽  
Health Examination ◽  
Full Time ◽  
Erosive Gastritis ◽  
Cross Sectional ◽  
Long Working Hours ◽  
Superficial Gastritis

ObjectivesThis study aimed to determine the cross-sectional association between long working hours and gastritis diagnosed by endoscopy.DesignCross-sectional study.SettingLarge university hospitals in Seoul and Suwon, South Korea.ParticipantsWorkers in formal employment who underwent a comprehensive health examination at the Kangbuk Samsung Hospital Total Healthcare Centre clinics in Seoul and Suwon, South Korea, between January 2011 and December 2018. Of the 386 488 participants, 168 391 full-time day workers met the inclusion criteria and were included in the analysis.Primary outcome measureEndoscopic gastritis.ResultsThe participants were predominantly college graduates or above (88.9%), male (71.2%) and in their 30s (51.1%), and the median age was 36 (IQR 31–42). Approximately 93.2% of participants had positive endoscopic gastritis, and there was a significant association between working hours and positive findings of endoscopic gastritis. The multivariate fully adjusted prevalence ratio (PR) of endoscopic gastritis for participants working >55 hours per week compared with 35–40 hours per week was 1.011 (95% CI 1.007 to 1.015). Furthermore, endoscopic findings were classified into nine subtypes of gastritis, including superficial gastritis, erosive gastritis, atrophic gastritis, intestinal metaplasia and haemorrhagic gastritis increased with longer working hours (p for trends <0.05). Their PRs for participants working >55 hours per week compared with 35–40 hours per week were 1.019 (95% CI 1.012 to 1.026), 1.025 (95% CI 1.011 to 1.040), 1.017 (95% CI 1.008 to 1.027), 1.066 (95% CI 1.028 to 1.105) and 1.177 (95% CI 1.007 to 1.375), respectively.ConclusionsWorking over 55 hours per week was cross-sectionally associated with positive findings of endoscopic gastritis. The study findings indicated potentially increased risks of superficial gastritis, erosive gastritis, atrophic gastritis, intestinal metaplasia and haemorrhagic gastritis among workers with long working hours (>55 hours per week), supporting the need for further exploration via longitudinal studies.

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