I am offering the data below as a basis for discussion. I have been affected and informed about a number of biking related injuries. That made me curious how typical my experience is.
I did not see Boxing or Baseball.
Statistics from the Dr Pietro Tonino of Loyola U. School of Medicine
Based on data from CPSC
Sports-related injuries presenting at US hospital emergency rooms.
Data for 2005. These would be the more serious injuries. There is no adjustment for exposure data to relate the number of hours spent by US residents in each of the activities.
Sport ER Visits
US Football 418,000
Soccer (Football) 175,000
Horseback riding 73,000
Roller Skating 35,000
Track & Field 17,000
Dr. Tonino's study was reported in the Washington Post on June 19, 2006.