Data from 1268 patients undergoing radical prostatectomy between 2000 and 2009 were retrospectively reviewed. Patients were classified according to age (<70 or ≥70 years) at the time of prostatectomy. After matching pre-operative factors (i.e. prostate specific antigen, positive biopsy cores, Gleason score, clinical stage and D'Amico risk group), 333 patients were chosen from each group.