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.