GP Scoring
GP score was obtained by multiplying the preoperative total PSA value with the prostate biopsy GS according to the definition of Soga N et al7. According to the distribution of scores, patients were divided into 3 groups as low, intermediate and high risk (<50, 50-100, >100).
After the patients were divided into risk groups with each predictive model, the 1, 3 and 5 year (yr) BCR-free rates of the patients were determined for each model. Also the accuracy of four predictive models for predicting 1, 3 and 5-yr BCR was evaluated.