MP43-16 RACIAL DISPARITIES IN RATES OF GLEASON GRADE RECLASSIFICATION IN A MULTI-INSTITUTIONAL PROSTATE CANCER ACTIVE SURVEILLANCE COHORT: A PENNSYLVANIA UROLOGY REGIONAL COLLABORATIVE (PURC) ANALYSIS. (1st May 2022) - Reddy, Rohit; Strauss, David; Loecher, Matthew; Syed, Kaynaat; Danella, John; Ginzburg, Serge; Belkoff, Laurence; Tomaszewski, Jeffrey; Trabulsi, Edouard; Singer, Eric A.; Jacobs, Bruce L.; Raman, Jay; et al.