| Variables | Side effects | OR (95% CI) | p-value | |
| Yes | No | |||
| Exclusive RT | 27 (15.0) | 23 (25.6) | 0.51 (0.28 - 0.96) | 0.03 |
| RT*+CT | 115 (63.9) | 56 (62.2) | 1.07 (0.64 - 1.83) | 0.78 |
| RT+CH** | 21 (11.7) | 8 (8.9) | 1.35 (0.58 - 3.19) | 0.48 |
| RT+CT***+CH | 17 (9.4) | 3 (3.3) | 3.03 (0.86 - 10.61) | 0.08 |