Department of Occupational and Environmental Medicine, Cheonan Medical Center, Cheonan (Dr Park); Department of Occupational and Environmental Medicine, Gil Medical Center, Gachon University College of Medicine, Incheon (Dr Lee); Department of Occupational and Environmental Medicine, Soonchunhyang University College of Medicine, Seoul (Dr Lee), Republic of Korea.
Address correspondence to: June-Hee Lee, MD, PhD, Department of Occupational and Environmental Medicine, Soonchunhyang University College of Medicine, 140-887, 59, Daesagwan-ro (657 Hannam-dong), Yongsan-gu, Seoul, Republic of Korea ([email protected]).
Authors’ contributions: S.P. and J.H.L. designed the study; W.L. analyzed the data. All authors made significant contributions to the result interpretation, drafted the manuscript, revised, and approved the final manuscript.
Clinical significance: Association between increasing working hours and increased rates of work-related injury. No significant correlation between length of working hours and the prevalence of work-related injury when sufficient rest breaks are provided.
Lee, Park, and Lee have no relationships/conditions/circumstances that present potential conflict of interest.
The JOEM editorial board and planners have no financial interest related to this research.
