Patient Characteristics
| Characteristic | Data |
| Mean age (y) | 67 (range, 42–89) |
| Initial Gleason score | |
| 6 | 12 (4%) |
| 7 | 169 (59%) |
| 3 + 4 | 91 |
| 4 + 3 | 77 |
| Unknown | 1 |
| 8 | 45 (16%) |
| 4 + 4 | 43 |
| 3 + 5 | 2 |
| 9 | 58 (20%) |
| 4 + 5 | 53 |
| 5 + 4 | 5 |
| 10 | 1 (0.4%) |
| Unknown | 2 |
| National Comprehensive Cancer Network stage | |
| I | 2 (1%) |
| IIA | 49 (18%) |
| IIB | 36 (13%) |
| III | 98 (36%) |
| IV | 87 (32%) |
| Unknown | 15 |
| Initial treatment | |
| Persistent elevated PSA after RP or radiotherapy | 70 (24%) |
| Rising PSA after initially successful surgery or radiotherapy: | |
| RP | 108 (38%) |
| RP plus radiotherapy | 79 (28%) |
| Radiotherapy | 30 (10%) |
| Time between initial treatment and 11C-choline PET/CT (y) | 4.6 (range, 0.2–23.3) |