Characteristic | n | Without PMRT | With PMRT | p |
---|---|---|---|---|
(n = 234) (%) | (n = 371) (%) | |||
Age, years | ||||
<35 | 64 | 20 (8.6) | 44 (11.9) | 0.197 |
≥35 | 541 | 214 (91.4) | 327 (88.1) | |
Menopausal status | ||||
Premenopausal | 400 | 153 (65.4) | 247 (66.6) | 0.763 |
Postmenopausal | 205 | 81 (34.6) | 124 (33.4) | |
Tumor size | ||||
T1-T2 | 471 | 189 (80.8) | 282 (76.0) | 0.170 |
T3-T4 | 134 | 45 (19.2) | 89 (24.0) | |
Nodal stage | ||||
N2 | 321 | 139 (59.4) | 182 (49.1) | 0.013 * |
N3 | 284 | 95 (40.6) | 189 (50.9) | |
ER status | ||||
Negative | 285 | 112 (47.9) | 173 (46.6) | 0.767 |
Positive | 320 | 122 (52.1) | 198 (53.4) | |
PR status | ||||
Negative | 229 | 92 (39.3) | 137 (36.9) | 0.555 |
Positive | 376 | 142 (60.7) | 234 (63.1) | |
HER2 status | ||||
Negative | 376 | 136 (58.1) | 240 (64.7) | 0.105 |
Positive | 229 | 98 (41.9) | 131 (35.3) | |
Breast cancer subtype | ||||
Luminal A | 295 | 107 (45.7) | 188 (50.7) | 0.368 |
Luminal B | 130 | 53 (22.6) | 77 (20.8) | |
HER2 positive | 99 | 45 (19.3) | 54 (14.5) | |
Triple negative | 81 | 29 (12.4) | 52 (14.0) | |
Number of NLNs | ||||
0-12 | 477 | 180 (76.9) | 297 (80.0) | 0.358 |
12-39 | 128 | 54 (23.1) | 74 (20.0) | |
LNR | ||||
< 0.20 | 42 | 29 (12.4) | 13 (3.5) | < 0.001* |
0.21-0.65 | 337 | 131 (56.0) | 206 (55.5) | |
> 0.65 | 226 | 74 (31.6) | 152 (41.0) |