Conclusion
According to the results of this study, PSAD can be used for predicting CSPCa, but f/t PSA can not. PSAD is not a strong stand-alone tool with its sensitivity and specificity, but we suggest that PSAD can be a part of future nomograms for predicting CSPCa and future protocols for active surveillance. Therefore, we can prevent patients from overdiagnoses and overtreatment.