Abstract Background: Each year many people lose their lives resulting from driving accidents. This can cause irreparable mental, physical and psychological loss for the survivals. Driving sleeping is referred to as one of the causes requiring a research on the relationship between driving accidents and damages resulted from with the sleep quality of the truck drivers. Methods: In this descriptive cross-sectional study 150 truck drivers of Darab city were selected randomly. A two-section questionnaire was used the first part of which included demographic information while for the second part it comprised Pittsburg Sleep Quality Index (PSQI). SPSS software was applied to analyze the data. Results: The results indicated the subjects' mean of PSQI as 4.9±2.70 with a bad sleep quality in 39.3% of the drivers. Less than a quarter of the subjects (22.7%) had accidents in the 5 previous years. Sleepiness was the cause of 25.3% of the accidents. Driving accidents, record for the drivers with appropriate sleep quality was lower compared with those with inappropriate sleep quality and the difference was statistically significant. Conclusions: The results represented that around a quarter of the accidents were due to the subjects' sleepiness. Over one third of them were not enjoying a good sleep quality. So it is suggested offering sleep health training to the drivers as well as issuing health card and sleep test as required for them.

Keywords: Sleep Quality, Accidents, Truck Drivers

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