Overall 5-year relative survival rate for prostate cancer among African Americans is 98% compared to 100% among whites.
80% of AAs are diagnosed in local or regional stages
So morbidity is an equally important outcome of interest.
Hayat, M.J., et al., Cancer statistics, trends, and multiple primary cancer analyses from the Surveillance,
 Epidemiology, and End Results (SEER) Program. Oncologist, 2007. 12(1): p. 20-37