Moul et al reported an equation for predicting recurrence of prostate cancer based on findings after radical prostatectomy. This is based on analysis of the Center for Prostate Disease Research (CPDR) and Cancer of the Prostate Strategic Urologic Research Endeavor (CaPSURE) databases. The authors are from Walter Reed Army Medical Center, University of California San Francisco, Stanford University, Center for Prostate Disease Research and the Uniformed Services University of Health Sciences.