Table 1 Characteristics of patients with MuBC after chemotherapy and surgery
Variables | Total queue(SEER) | Training queue | Internal verification queue | External verification queue | ||||
|---|---|---|---|---|---|---|---|---|
N = 1668 | N = 1169 | N = 499 | N = 107 | |||||
n | % | n | % | n | % | n | % | |
Age | ||||||||
≤ 52 | 835 | 50.1 | 576 | 49.3 | 259 | 51.9 | 77 | 72.0 |
> 52 | 833 | 49.9 | 593 | 50.7 | 240 | 48.1 | 30 | 28.0 |
Breast subtype | ||||||||
HR+/HER-2− | 544 | 32.6 | 390 | 33.4 | 154 | 30.9 | 56 | 52.3 |
HR + /HER2+ | 178 | 10.7 | 126 | 10.8 | 52 | 10.4 | 10 | 9.3 |
HR-/HER-2+ | 25 | 1.5 | 17 | 1.5 | 8 | 1.6 | 2 | 1.9 |
HR-/HER-2− | 14 | 0.8 | 10 | 0.9 | 4 | 0.8 | 2 | 1.9 |
Unknown | 907 | 54.4 | 626 | 53.6 | 281 | 56.3 | 37 | 34.6 |
ER status | ||||||||
Negative | 104 | 6.2 | 72 | 6.2 | 32 | 6.4 | 9 | 8.4 |
Positive | 1564 | 93.8 | 1097 | 93.8 | 467 | 93.6 | 98 | 91.6 |
PR status | ||||||||
Negative | 332 | 19.9 | 225 | 19.2 | 107 | 21.4 | 16 | 15.0 |
Positive | 1336 | 80.1 | 944 | 80.8 | 392 | 78.6 | 91 | 85.0 |
HER2 status | ||||||||
Negative | 558 | 33.5 | 400 | 34.2 | 158 | 31.7 | 58 | 54.2 |
Positive | 203 | 12.2 | 143 | 12.2 | 60 | 12.0 | 12 | 11.2 |
Unknown | 907 | 54.4 | 626 | 53.6 | 281 | 56.3 | 37 | 34.6 |
Stage | ||||||||
I | 540 | 32.4 | 382 | 32.7 | 158 | 31.7 | 30 | 28.0 |
II | 836 | 50.1 | 590 | 50.5 | 246 | 49.3 | 53 | 49.5 |
III | 268 | 16.1 | 179 | 15.3 | 89 | 17.8 | 22 | 20.6 |
IV | 24 | 1.4 | 18 | 1.5 | 6 | 1.2 | 2 | 1.9 |
T stage | ||||||||
1 | 700 | 42.0 | 489 | 41.8 | 211 | 42.3 | 40 | 37.4 |
2 | 669 | 40.1 | 465 | 39.8 | 204 | 40.9 | 59 | 55.1 |
3 | 211 | 12.6 | 153 | 13.1 | 58 | 11.6 | 6 | 5.6 |
4 | 64 | 3.8 | 44 | 3.8 | 20 | 4.0 | 2 | 1.9 |
Unknown | 24 | 1.4 | 18 | 1.5 | 6 | 1.2 | 0 | 0 |
N stage | ||||||||
0 | 1049 | 62.9 | 741 | 63.4 | 308 | 61.7 | 66 | 61.7 |
1 | 458 | 27.5 | 325 | 27.8 | 133 | 26.7 | 23 | 21.5 |
2 | 101 | 6.1 | 59 | 5.0 | 42 | 8.4 | 8 | 7.5 |
3 | 60 | 3.6 | 44 | 3.8 | 16 | 3.2 | 10 | 9.3 |
M stage | ||||||||
0 | 1644 | 98.6 | 1151 | 98.5 | 493 | 98.8 | 105 | 98.1 |
1 | 24 | 1.4 | 18 | 1.5 | 6 | 1.2 | 2 | 1.9 |
Historic stage | ||||||||
Localized | 1023 | 61.3 | 726 | 62.1 | 297 | 59.5 | / | / |
Regional | 593 | 35.6 | 408 | 34.9 | 185 | 37.1 | / | / |
Distant | 52 | 3.1 | 35 | 3.0 | 17 | 3.4 | / | / |
Surgery | ||||||||
BCS | 792 | 47.5 | 561 | 48.0 | 231 | 46.3 | 24 | 22.4 |
Mastectomy | 418 | 25.1 | 292 | 25.0 | 126 | 25.3 | 3 | 2.8 |
Radical | 458 | 27.5 | 316 | 27.0 | 142 | 28.5 | 80 | 74.8 |
Radiotherapy | ||||||||
No | 701 | 42.0 | 499 | 42.7 | 202 | 40.5 | 53 | 49.5 |
Yes | 967 | 58.0 | 670 | 57.3 | 297 | 59.5 | 54 | 50.5 |
Survival | ||||||||
Alive | 1423 | 85.3 | 1001 | 85.6 | 422 | 84.6 | 100 | 93.5 |
Dead | 245 | 14.7 | 168 | 14.4 | 77 | 15.4 | 7 | 6.5 |