http://www.ojp.usdoj.gov/bjs/pub/pdf/ivc98.pdf
Types of injuries and crime
Between 1992 and 1998, 3 out of 4 violent crime victims reported that they were not injured during the crime. During this 7- year period about 1 in 4 victims of violence reported sustaining some type of injury, mostly minor. While the proportion varied by type of crime, approximately 3% of all violent crime victims suffered a severe injury, and an additional 1% were victims of rape or sexual assault with unspecified type of injuries.
Of those injured, 82% reported such injuries as bruises, black eyes, cuts, scratches, swelling, chipped teeth, or other injuries requiring less than 2 days hospitalization denoted in this report as minor injuries.
Approximately 13% of injured crime victims described severe injuries. These injuries included gunshot wounds, knife wounds, broken bones, loss of teeth, internal injuries, loss of consciousness, or other injuries requiring 2 or more days of hospitalization. Another 4% experienced rape/sexual assault with unspecified types of injuries.