1483 CORE LENGTH AS A PREDICTOR OF GLEASON SCORE UPGRADING IN MEN DIAGNOSED WITH LOW RISK PROSTATE CANCER BY CONTEMPORARY MULTICORE PROSTATE BIOPSY

Predictors Upgrading (N 105) Non-upgrading (N 93) Pvalue Mean age (y/o) 68 65 0.012 PSA (ng/ml) 14 11 0.280 Prostate volume (ml) 34 37 0.201 PSA density (ng/ml) 0.46 0.36 0.128 Mean max % Ca in any core 49 36 0.007 Mean days from Biopsy to RP 55 61 0.117 Number of biopsies 1.1 1.1 0.930 Mean No. of biopsy cores 9.2 8.9 0.504 Mean No. of positive cores 2.8 1.9 0.004 Bx Primary GS 3.0 3.2 0.031 Bx Secondary GS 3.0 3.1 0.967 Bx GS sum 6.0 6.3 0.678 T test & Mann-Whitney test