| Treatment plan | HI | CI | |
| 3D-CRT | 0.14 ± 0.08 | 0.62 ± 0.12 | |
| IMRT | 0.13 ± 0.09 | 0.62 ± 0.11 | |
| Hybrid-IMRT | 0.13 ± 0.05 | 0.63 ± 0.08 | |
| CRT vs IMRT | t | 0.512 | 0.287 |
| P value | 0.488 | 0.274 | |
| CRT vs Hybrid | t | 0.078 | 0.785 |
| P value | 0.144 | 0.658 | |
| IMRT vs Hybrid | t | 0.107 | 0.652 |
| P value | 0.944 | 0.728 | |