| Disease site | Number of patients (%) | Number of fields |
| Bone and soft tissue | 50 (15.4) | 217 |
| Esophagus | 10 (3.1) | 49 |
| Head and neck | 38 (11.7) | 270 |
| Liver | 17 (5.2) | 33 |
| Lung | 26 (8.0) | 94 |
| Lymph node | 7 (2.2) | 25 |
| Pancreas | 34 (10.5) | 127 |
| Prostate | 112 (34.6) | 444 |
| Rectum | 26 (8.0) | 163 |
| Uterus | 4 (1.2) | 26 |