Table 2.
Outcomes of radiotherapy according to iPSA level.
| Variables | Strata | Total | iPSA ≤ 50 (Non-uhPSA) |
iPSA > 50 (uhPSA) |
p-Value |
|---|---|---|---|---|---|
| No. (%) | No. (%) | No. (%) | |||
| PSA failure | No | 1250 (90.9) | 1078 (92.9) | 172 (80.4) | <0.001 |
| Yes | 125 (9.1) | 83 (7.1) | 42 (19.6) | ||
| Clinical recurrence | No | 1312 (95.4) | 1118 (96.3) | 194 (90.7) | 0.001 |
| Yes | 63 (4.6) | 43 (3.7) | 20 (9.3) | ||
| Local Failure | No | 2483 (99.5) | 1154 (99.4) | 213 (99.5) | 1 |
| Yes | 12 (0.5) | 7 (0.6) | 1 (0.5) | ||
| Pelvic lymph node metastasis | No | 1357 (98.7) | 1146 (98.7) | 211 (98.6) | 0.752 |
| Yes | 18 (1.3) | 15 (1.3) | 3 (1.4) | ||
| Distant metastasis | No | 1325 (96.4) | 1128 (97.2) | 197 (92.1) | 0.001 |
| Yes | 50 (3.6) | 33 (2.8) | 17 (7.9) | ||
| Prostate cancer related mortality | Alive | 1359 (98.8) | 1149 (99.0) | 210 (98.1) | 0.295 |
| Death | 16 (1.2) | 12 (1.0) | 4 (1.9) | ||
| Overall survival | Alive | 1311 (95.3) | 1114 (96.0) | 197 (92.1) | 0.02 |
| Death | 64 (4.7) | 47 (4.0) | 17 (7.9) |
p-value was calculated between iPSA ≤ 50 (non-uhPSA) and iPSA > 50 (uhPSA). Bold values indicate statistically significance.