Table 1.
Clinicopathological characteristics of patients and samples.
| Characteristics | N | All cases | Type | P‐value | |
|---|---|---|---|---|---|
| non‐IBC | IBC | ||||
| Age | 2397 | 59.75 (24–96.29) | 60 (26–96.29) | 49.5 (24–80) | 2.43E‐07 |
| Pathological type | |||||
| Ductal | 1808 | 1808 (76%) | 1763 (75%) | 45 (98%) | 2.61E‐03 |
| Lobular | 277 | 277 (12%) | 276 (12%) | 1 (2%) | |
| Other | 309 | 309 (13%) | 309 (13%) | 0 (0%) | |
| Pathological grade | |||||
| 1 | 146 | 146 (11%) | 146 (11%) | 0 (0%) | 1.02E‐03 |
| 2 | 509 | 509 (38%) | 498 (39%) | 11 (25%) | |
| 3 | 682 | 682 (51%) | 649 (50%) | 33 (75%) | |
| AJCC stage | |||||
| 1–2 | 1615 | 1615 (82%) | 1615 (87%) | 0 (0%) | < 1.00E‐06 |
| 3–4 | 349 | 349 (18%) | 248 (3%) | 101 (100%) | |
| ER status | |||||
| Negative | 587 | 587 (25%) | 540 (23%) | 47 (64%) | 3.44E‐13 |
| Positive | 1791 | 1791 (75%) | 1765 (77%) | 26 (36%) | |
| PR status | |||||
| Negative | 1069 | 1069 (45%) | 1017 (44%) | 52 (72%) | 2.94E‐06 |
| Positive | 1305 | 1305 (55%) | 1285 (56%) | 20 (28%) | |
| ERBB2 status | |||||
| Negative | 1937 | 1937 (85%) | 1891 (85%) | 46 (65%) | 3.09E‐05 |
| Positive | 355 | 355 (15%) | 330 (15%) | 25 (35%) | |
| Molecular subtype | |||||
| HR+/HER2− | 1520 | 1520 (66%) | 1502 (68%) | 18 (25%) | < 1.00E‐06 |
| HER2+ | 355 | 355 (16%) | 330 (15%) | 25 (35%) | |
| TN | 415 | 415 (18%) | 387 (17%) | 28 (40%) | |