Table 1 Patient and treatment characteristics
Variable | CF-PMRT n (%) N = 660 | HF-PMRT n (%) N = 980 | p-value |
|---|---|---|---|
Age (Median; IQR) (year) | 57 (49–64) | 51 (45–58) | < 0.001* |
Tumor side | 0.011 | ||
Left side | 324 (49) | 492 (50) | |
Right side | 323 (49) | 484 (49) | |
Both sides | 13 (2) | 4 (1) | |
AJCC stage | < 0.001 | ||
I | 32 (5) | 54 (6) | |
II | 329 (50) | 559 (57) | |
III | 250 (38) | 323 (33) | |
IV | 14 (2) | 44 (4) | |
Unknown | 35 (5) | 0 (0) | |
Chemotherapy | 0.027 | ||
No | 23 (3) | 58 (6) | |
Yes | 637 (97) | 922 (94) | |
Hormonal therapy | 0.257 | ||
No | 248 (38) | 397 (41) | |
Yes | 412 (62) | 583 (59) | |
Radiotherapy technique | 0.001 | ||
2D technique with bolus | 660 (100) | 967 (99) | |
Tomotherapy | – | 13 (1) | |
Radiotherapy technique | < 0.001 | ||
CW only | 20 (3) | 90 (9) | |
CW plus RNI | |||
- CW + SPC | 453 (69) | 595 (61) | |
- CW + SPC+ Axillary | 187 (28) | 295 (30) | |
Radiotherapy boost | < 0.001 | ||
No | 554 (84) | 731 (75) | |
Yes | 106 (16) | 249 (25) | |