Originally Posted by
mr_bill
Well, I see we are still swagging away.
But helmeted riders have a severe trauma rate (medical attention sought for an injury) on the order of once every 20 years.
Unhelmeted riders have a severe trauma rate (medical attention sought for an injury) on the order of once every 8 years.
(Trauma, that is injury with self care, about once every 5 years.)
Your choice.
-mr. bill
Source for this info? And by whose definition is
Severe Trauma,
any injury requiring medical attention?