Disruptive behaviour disorders in male teenagers associated with increased risk of road crashes

Disruptive behaviour disorders in male teenagers, such as attention deficit hyperactivity disorder, conduct disorder, and oppositional defiant disorder are associated with about a one-third increase in the risk of being seriously injured in a road traffic crash - either as driver or pedestrian. This increase is similar to the increased relative risk found for patients treated for epilepsy. These are the findings of a study by Donald Redelmeier and colleagues from the University of Toronto, Toronto, Canada, and published in this week's PLoS Medicine. Male teenagers are the single most risky population group of drivers, with twice the collision rate of the general population, despite low amounts of driving and good general health...

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