Purpose： lran has a high rate of road traffic accidents. Poor quality of sleep brings about loss of attention, which is an important cause of road traffic accidents particularly in monotonous roads. The causes of poo...Purpose： lran has a high rate of road traffic accidents. Poor quality of sleep brings about loss of attention, which is an important cause of road traffic accidents particularly in monotonous roads. The causes of poor quality of sleep in occupational drivers are multifactorial. The objective of the present study was to assess the prevalence of poor sleep quality among occupational drivers with rotating work schedules and analyze its different risk factors. Methods： 2200 professional long-haul truck drivers who had been referred to the Occupational Health Clinic for routine education course were invited. We obtained data from eight provinces from various parts of Iran during 2012-2013. Data were collected using a questionnaire including questions about demographic and job characteristics. Pittsburg Sleep Quality Index （PSQI） was used to assess drivers＇ sleep quality. Results： Mean working （driving） time was （9.3 ± 2.5） hours daily and （55.5 ± 18.29） hours weekly. About 23.5% of the drivers reported history of smoking, 14.5% had low job satisfaction and 60% had irregular work schedule. 16.4% of drivers had an accidents leading to injury during the past five years. The mean PSQI score was 4.2 ± 2.7; 54% had a PSQI〉5 （poor quality of sleep）. Multivariate logistic regression showed that smoking, job satisfaction, history of accidents, shift work and work hours per day were the most important risk factors for poor sleep quality. Conclusion： Results obtained from the current study showed a high prevalence of poor quality of sleep among professional drivers. It warrants more attention to this significant problem using some measures to improve working conditions in professional drivers, as well as health promotion interventions.展开更多
Purpose： Road traffic accidents are one of main problems in Iran. Multiple factors cause traffic accidents and the most important one is sleepiness. This factor, however, is given less attention in our country. Road ...Purpose： Road traffic accidents are one of main problems in Iran. Multiple factors cause traffic accidents and the most important one is sleepiness. This factor, however, is given less attention in our country. Road traffic accidents relevant to sleepiness are studied. Methods： In this cross-sectional study, all road traffic accidents relevant to sleepiness, which were re- ported by police, were studied in Tehran province in 2009. Results： The risk of road traffic accidents due to sleepiness was increased by more than sevenfold （odds ratio = 7.33） in low alertness hours （0：00-6：00） compared to other time of day. The risk of road traffic accidents due to sleepiness was decreased by 0.15-fold （odds ratio - 0.15） in hours with maximum of alertness （18：00-22：00） of circadian rhythm compared to other time of day. Conclusion： The occurrence of road traffic accidents due to sleepiness has significant statistical relations with driving during lowest point of alertness of circadian rhythm.展开更多
文摘Purpose： lran has a high rate of road traffic accidents. Poor quality of sleep brings about loss of attention, which is an important cause of road traffic accidents particularly in monotonous roads. The causes of poor quality of sleep in occupational drivers are multifactorial. The objective of the present study was to assess the prevalence of poor sleep quality among occupational drivers with rotating work schedules and analyze its different risk factors. Methods： 2200 professional long-haul truck drivers who had been referred to the Occupational Health Clinic for routine education course were invited. We obtained data from eight provinces from various parts of Iran during 2012-2013. Data were collected using a questionnaire including questions about demographic and job characteristics. Pittsburg Sleep Quality Index （PSQI） was used to assess drivers＇ sleep quality. Results： Mean working （driving） time was （9.3 ± 2.5） hours daily and （55.5 ± 18.29） hours weekly. About 23.5% of the drivers reported history of smoking, 14.5% had low job satisfaction and 60% had irregular work schedule. 16.4% of drivers had an accidents leading to injury during the past five years. The mean PSQI score was 4.2 ± 2.7; 54% had a PSQI〉5 （poor quality of sleep）. Multivariate logistic regression showed that smoking, job satisfaction, history of accidents, shift work and work hours per day were the most important risk factors for poor sleep quality. Conclusion： Results obtained from the current study showed a high prevalence of poor quality of sleep among professional drivers. It warrants more attention to this significant problem using some measures to improve working conditions in professional drivers, as well as health promotion interventions.
文摘Purpose： Road traffic accidents are one of main problems in Iran. Multiple factors cause traffic accidents and the most important one is sleepiness. This factor, however, is given less attention in our country. Road traffic accidents relevant to sleepiness are studied. Methods： In this cross-sectional study, all road traffic accidents relevant to sleepiness, which were re- ported by police, were studied in Tehran province in 2009. Results： The risk of road traffic accidents due to sleepiness was increased by more than sevenfold （odds ratio = 7.33） in low alertness hours （0：00-6：00） compared to other time of day. The risk of road traffic accidents due to sleepiness was decreased by 0.15-fold （odds ratio - 0.15） in hours with maximum of alertness （18：00-22：00） of circadian rhythm compared to other time of day. Conclusion： The occurrence of road traffic accidents due to sleepiness has significant statistical relations with driving during lowest point of alertness of circadian rhythm.
