Saeed Yazdaniraad - Department of Occupational Health Engineering, Faculty of Public Health, Tehran University of Medical Sciences, Tehran, Iran
Amirhossein Khoshakhlagh - Department of Occupational Health Engineering, Faculty of Public Health, Tehran University of Medical Sciences, Tehran, Iran
Hossein Fallah - Department of Ergonomics, Health Faculty, Tabriz University of Medical Sciences, Tabriz, Iran
Zahrasadat Keyvanian - Department of Occupational Health Engineering, Health Faculty, Kashan University of Medical Sciences, Kashan, Iran

Background: Occupational accidents occur every day across industries. One of the probable causes of this occurrence is the sleep disorders. This study aims to investigate the relationship between the sleep disorders, and occupational accidents in a group of Iranian workers. Methods: A cross-sectional study was conducted on 366 workers of steel parts production industries in Kashan, Iran. A three-part questionnaire was used in the study. The first part covered the demographic characteristics of the workers, the second part was related to the Pittsburgh Sleep Quality Index for sleep disorders and the third part was related to the information on the accident occurrence in the workplace. The collected data were analyzed using SPSS software and analyzed with Pearson correlation coefficient, ANOVA and t-test. Results: The results of this study showed that the average score of sleep quality was 5.84 (standard deviation: 2.66). The sleep quality of 53.7% of the subjects was poor. Over the past year, 27.4% of the workers had an occupational incident. There was no significant relationship between sleep disorders and occurrence of occupational accidents (p> 0.05). Conclusion: Our results showed that more than half of the workers suffered from poor sleep quality. However, there was no significant relationship between sleep disorders and occupational accidents.

Occupational Accidents, Sleep Wake Disorders, Occupational Health