Urinary/serum prostate-specific antigen ratio: Comparison with free/total serum prostate-specific antigen ratio in improving prostate cancer detection

Our results confirmed that the U/S PSA ratio may be a useful test in prostate cancer detection when the total serum PSA level is between 4 and 10 ng/mL. The F/T serum PSA ratio and U/S PSA ratio did not correlate. This suggests that these two tests could complement each other.