On 22/05/2010, John Francis <jo...@panix.com> wrote: > It's tempting to point to statistics that show a (slightly) lower > rate of injury amongst helmet wearers. But this is a self-selecting > population; it's quite plausible that the sort of person who elects > to wear a helmet is less likely to engage in risky activities, and > thus would have a lower chance of an accident even without the helmet.
The stats would probably be more meaningful from jurisdictions such as mine where it's illegal to ride sans helmet (though of course many do, one the spot fines are regularly dispensed). -- Rob Studdert (Digital Image Studio) Tel: +61-418-166-870 UTC +10 Hours Gmail, eBay, Skype, Twitter, Facebook, Picasa: distudio -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.