Re: That's all very well....
If it was "number of accidents had by drunk/drug swilling riders" then yes, a control would be required.
You would want to know how much the intoxication had affected the ability to ride safely.
As it is, it's a case of "Of the accidents that occured, this many were associated with drink/drugs/etc" Which is just reporting. Not really sure how to have a control set for this.
We could compare it, to say, traffic accidents, and that would be useful - is drink a bigger problem as a percentage of crashes on a scooter than in a car.
Biting the hand that feeds IT
