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Traffic Crash Accidents in Tehran, Iran: Its Relation With Circadian Rhythm of Sleepiness Publisher Pubmed



Sadeghniiathaghighi K1 ; Yazdi Z2 ; Moradinia M1 ; Aminian O1 ; Esmaili A3
Authors
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Authors Affiliations
  1. 1. Occupational Sleep Research Center, Tehran University of Medical Sciences, Tehran, Iran
  2. 2. Metabolic Disease Research Center, Qazvin University of Medical Sciences, Qazvin, Iran
  3. 3. Traffic Police University, Tehran, Iran

Source: Chinese Journal of Traumatology - English Edition Published:2015


Abstract

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 reported 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. © 2015 Daping Hospital and the Research Institute of Surgery of the Third Military Medical University.
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