Mortality rates in patients with pelvic fractures are between 10 and 16 percent.

http://en.wikipedia.org/wiki/Pelvic_fracture

 Prognosis
Mortality rates in patients with pelvic fractures are between 10 and 16 percent.However, death is typically due to associated trauma affecting other organs, such as the brain. Death rates due to complications directly related to pelvic fractures, such as bleeding, are relatively low.