| Variables | Median | IQR (Q3 − Q1) | p-value |
| PSA (ng/ml) |
| ||
| Pre-op; n = 231 | 4.600 | 6.370 (7.94 − 1.57) |
|
| Post-op 24 month; n = 190 | 1.315 | 1.710 (2.30 − 0.59) | 0.000 |
| Post-op 36 months; n = 123 | 1.120 | 2.168 (2.21 − 0.042) | 0.000 |
| Post-op 48 months; n = 61 | 0.688 | 2.717 (2.72 − 0.003) | 0.000 |
| Post-op 60 months; n = 20 | 0.884 | 3.020 (3.15 − 0.13) | 0.006 |
| Prostate volume (ml) |
| ||
| Pre-op; n = 162 | 42.00 | 24.04 (56.51 − 32.47) |
|
| Post-op 24 month; n = 212 | 41.745 | 26.53 (56.18 − 29.65) | 0.197 |
| Post-op 36 months; n = 137 | 39.30 | 20.57 (50.57 − 30.00) | 0.140 |
| Post-op 48 months; n = 81 | 36.80 | 20.99 (49.62 − 28.63) | 0.062 |
| Post-op 60 months; n = 38 | 38.920 | 19.64 (46.97 − 27.33) | 0.036 |
| Qmax (ml/s) |
| ||
| Pre-op; n = 228 | 11.00 | 9.10 (16.70 − 7.60) |
|
| Post-op 24 month; n = 94 | 12.90 | 9.20 (17.80 − 8.60) | 0.080 |
| Post-op 36 months; n = 98 | 17.10 | 13.90 (25.30 − 11.40) | 0.000 |
| Post-op 48 months; n = 71 | 16.50 | 13.10 (22.50 − 9.40) | 0.004 |
| Post-op 60 months; n = 190 | 18.80 | 12.60 (26.10 − 13.50) | 0.000 |
| Residual volume (ml) |
| ||
| Pre-op; n = 228 | 60.00 | 104.50 (132.50 − 28.00) |
|
| Post op 24 month; n = 94 | 35.00 | 60.00 (75.00 − 15.00) | 0.004 |
| Post op 36 months; n = 98 | 35.00 | 55.00 (70.00 − 15.00) | 0.000 |
| Post op 48 months; n = 71 | 20.00 | 41.00 (51.00 − 10.00) | 0.000 |
| Post op 60 months; n = 190 | 25.00 | 38.00 (53.00 − 15.00) | 0.000 |
| Average flow (ml/s) |
| ||
| Pre-op; n = 228 | 5.600 | 4.80 (8.40 − 3.60) |
|
| Post op 24 month; n = 94 | 6.500 | 3.70 (8.20 − 4.50) | 0.927 |
| Post op 36 months; n = 98 | 8.950 | 6.50 (12.10 − 5.60) | 0.000 |
| Post op 48 months; n = 71 | 7.90 | 7.40 (12.50 − 5.10) | 0.010 |
| Post op 60 months; n = 190 | 9.85 | 6.40 (13.50 − 7.10) | 0.000 |