Table 1: Patients’ characteristics.

CharacteristicStudy population (n = 158)

Age, mean ± SD years
PSA, mean ± SD ng/mL
PSA F/T, mean ± SD %
Clinical T stage
 T1c 127 cases
 T2a–c 26 cases
 T3a 5 cases
Biopsy Gleason score
 6 48 cases
 7 86 cases
8 24 cases
Prostate volume, mean ± SD mL
Operation
 ORP 50 cases
 LRP 108 cases
Pathologic T stage
 T2a–c 98 cases
 T3ab 59 cases
 T4 1 case
RP Gleason score
 6 16 cases
 7 120 cases
8 22 cases

PSA: prostate specific antigen, F/T: free-to-total PSA ratio, RP: radical prostatectomy, ORP: open radical prostatectomy, LRP: laparoscopic radical prostatectomy.