| Variables | Number (n) | Percentage (%) |
| Total dose (in Gray) |
|
|
| <60 | 134 | 49.6 |
| ≥60 | 136 | 50.4 |
| Fractionation (in Gray) |
|
|
| 2 | 162 | 60 |
| 2.5 | 93 | 34.4 |
| 3 | 15 | 5.6 |
| Schedule (in days) |
|
|
| <55 | 192 | 71.1 |
| 55 and over | 78 | 28.9 |