Table 1 The baseline level of 2917 patients
Variables | Number | Surgery (%) | Non-surgery (%) | χ2 | P-value |
|---|---|---|---|---|---|
Race | |||||
White | 2255 | 968 (42.9%) | 1287 (57.1%) | 0.567 | 0.753 |
Black | 462 | 190 (41.1%) | 272 (58.9%) | ||
Other | 200 | 87 (43.5%) | 113 (56.5%) | ||
Ethnic origin | |||||
Spanish-Hispanic-Latino | 289 | 136 (47.1%) | 153 (52.9%) | 2.513 | 0.113 |
Non-Spanish-Hispanic-Latino | 2628 | 1109 (42.2%) | 1519 (57.3%) | ||
Age | |||||
≤ 35 | 134 | 67 (50%) | 67 (50%) | 21.613 | < 0.001 |
35 < Age < 60 | 1345 | 631 (46%) | 714 (54%) | ||
≥ 60 | 1438 | 547 (38%) | 891 (62) | ||
Marital status | |||||
Married | 1416 | 662 (46.8%) | 754 (53.2%) | 18.638 | < 0.001 |
Unmarried | 1501 | 583 (38.8%) | 918 (61.2%) | ||
Grade | |||||
1 | 287 | 99 (34.5%) | 188 (65.5%) | 37.276 | < 0.001 |
2 | 1440 | 560 (38.9%) | 880 (68.1%) | ||
3–4 | 1190 | 586 (49.2%) | 604 (50.8%) | ||
Laterality | |||||
Left | 1525 | 656 (43%) | 869 (57%) | 0.147 | 0.701 |
Right | 1392 | 589 (42.3%) | 803 (57.7%) | ||
Histology | |||||
IDC | 2351 | 1023 (43.5%) | 1328 (56.5%) | 3.433 | 0.064 |
Non-IDC | 566 | 222 (39.2%) | 344 (60.8%) | ||
T stage | |||||
T1 | 383 | 153 (39.9%) | 230 (60.1%) | 45.68 | < 0.001 |
T2 | 1158 | 569 (49.1%) | 589 (50.9%) | ||
T3 | 553 | 242 (43.8%) | 311 (56.2%) | ||
T4 | 823 | 281 (34.1%) | 542 (65.9%) | ||
N stage | |||||
N0 | 704 | 208 (29.5%) | 496 (70.5%) | 258.366 | < 0.001 |
N1 | 1326 | 463 (34.9%) | 863 (65.1%) | ||
N2 | 406 | 261 (64.3%) | 145 (35.7) | ||
N3 | 481 | 313 (65.1%) | 168 (34.9%) | ||
Radiation | |||||
Yes | 1302 | 704 (54.1%) | 598 (45.9%) | 124.703 | < 0.001 |
No | 1615 | 541 (33.5%) | 1074 (66.5%) | ||
Chemotherapy | |||||
Yes | 1564 | 803 (51.3%) | 761 (48.7%) | 103.411 | < 0.001 |
No | 1353 | 442 (32.7%) | 911 (67.3%) | ||
Subtype | |||||
ER + /HER2− | 2114 | 869 (41.1%) | 1245 (58.9%) | 11.671 | 0.009 |
ER + /HER2 + | 433 | 189 (43.6%) | 244 (56.4%) | ||
HER2 + | 122 | 61 (50%) | 61 (50%) | ||
TNBC | 248 | 126 (50.8%) | 122 (49.2%) | ||
ER | |||||
Positive | 2532 | 1050 (41.5%) | 1482 (58.5%) | 11.512 | 0.001 |
Negative | 385 | 195 (50.6%) | 190 (49.4%) | ||
PR | |||||
Positive | 2121 | 886 (41.8%) | 1235 (58.2%) | 2.62 | 0.106 |
Negative | 796 | 359 (45.1%) | 437 (54.9%) | ||
HER2 | |||||
Positive | 555 | 250 (45%) | 305 (55%) | 1.566 | 0.211 |
Negative | 2362 | 995 (42.1%) | 1367 (57.9%) |