Sleepiness and the risk of car crash: a case control study

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Göran Kecklund
Marie Rodling Wahlström
Pierre Philip
Torbjörn Åkerstedt

Driver sleepiness is believed to be a strong contributing factor to road traffic crashes. Acute sleepiness risk factors, such as driving during early morning hours or having insufficient sleep, was observed in 15% to 25% of the car crash injuries in New Zealand. Most studies are observational and describe the information about the crashes, whereas controlled studies are rare. One exception is the study by Connor et al. (2002), which used a case-control design and compared 571 car drivers involved in crashes (in which at least one driver was admitted to hospital or killed - "cases") with 588 representative drivers (controls) recruited while driving on public roads. The results showed a strong association between indicators of acute sleepiness and the risk of an injury crash, whereas measures of chronic sleepiness showed no association with injury risk. The aim of the present study was to carry out a similar study in Sweden and examine the relationship between acute and chronic sleepiness characteristics, including disturbed sleep and other factors that may contribute to driver sleepiness, with the risk of crashes in which the driver was admitted to hospital.

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25-26
Apr

Cost Benefit Analysis (CBA) workshop in Stockholm

An open seminar and workshop in Stockholm will be held on 25-26 April 2018. The workshop deals with the use of CBA as a basis for decision-making in the public sector. The workshop is organized by, among others, Professor Jan-Eric Nilsson, VTI.
13-14
Jun

The 6st Humanist Conference

The 6th HUMANIST Conference will take place 13-14 June 2018 in the Hague, The Netherlands. The scope of the conference covers a wide range of topics on Human Factors in Transport. Tania Willstrand and Alexander Eriksson will present their research results.

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