Age difference shown for Ou 2009 (RB: 70, SD: 6.1 vs. RP: 67.3, SD: 6.2, p<0.05). Stage information not known for D’Alonzo 2009. Slight difference shown for Gleason score (RB: 6.5, SD: 0.7 vs. RP: 6.7, SD: 0.9, p=0.03) in D’Alonzo 2009.
No difference for Gleason score in Wood 2007.