On Tuesday, February 19, 2019 at 3:33:41 AM UTC, Frank Krygowski wrote to Tom:
How effective do you think bike helmets are at preventing fatalities?

At
https://groups.google.com/forum/#!searchin/rec.bicycles.tech/new$20york$20jute|sort:date/rec.bicycles.tech/ow2rIVqZ_DU/pdrY0lrdze8J
a study is discussed which concludes that helmet-wear in the US might save between 70 and 400 lives every year (of the 716 fatalities in 2008, between ten percent and more than half the cyclists dead on the roads).

Andre Jute
Always happy to help