Cell phones, prehospital access, and outcomes

[Bjorn, Pret]

I wonder whether anyone has studied the effects of cellular telephones
on prehospital notification, and by extension, patient outcome. 

If Maine is any example, the mean injury-to-EMS-activation interval must
be several minutes per case shorter than it was even ten years ago --
back when we used to have to drive or walk from the roadside to the
nearest landline to report a car crash.  

I imagine this might show up on our survival numbers, but I wouldn't
know how to begin to test it.  Pub Med's got bupkes.

Anyone aware of any organized data?

Just curious.