At 12:49 PM Wednesday 11/28/2007, Dave Land wrote: >On Nov 28, 2007, at 7:58 AM, Ronn! Blankenship wrote: > > > At 04:21 AM Wednesday 11/28/2007, Alberto Monteiro wrote: > >>It found that drivers with only cannabis in their systems > >> were slightly less likely to cause accidents than those without. > >> Drivers with both marijuana and alcohol did have a high accident > >> responsibility rate.
IOW accident rate (THC) (slightly)< accident rate (nothing), but accident rate (THC + EtOH) > accident rate (nothing). > > *** So presumably the decrease in accident rate due to cannabis alone > > is not enough to offset the increase due to alcohol alone ***, > and leaving > > unstated whether accident rate (marijuana + EtOH) = accident rate (EtOH > > alone) or accident rate (marijuana + EtOH) > accident rate (EtOH alone). > >Or, for the sake of completeness: accident rate (THC + EtOH) < accident >rate (EtOH alone)? Covered in the first part of the question. -- Ronn! :) _______________________________________________ http://www.mccmedia.com/mailman/listinfo/brin-l
