Table 1.
Clinicopathological features of patients with BC in training and validation groups.
| Variables | Training cohort (n = 446) | Validation cohort (n = 395) | P-value | ||
|---|---|---|---|---|---|
| No. | % | No. | % | ||
| Survival | – | – | – | – | 0.399 |
| Alive | 394 | 88.3 | 357 | 90. 4 | – |
| Dead | 52 | 11.7 | 38 | 9.6 | – |
| Age | – | – | – | – | 0.112 |
| <=60 | 240 | 53.8 | 235 | 59.5 | – |
| >60 | 206 | 46.2 | 160 | 40.5 | – |
| T | – | – | – | – | 0.401 |
| T1 | 129 | 28.9 | 105 | 26.6 | – |
| T2 | 241 | 54.0 | 232 | 58.7 | – |
| T3 | 59 | 13.2 | 49 | 12.4 | – |
| T4 | 17 | 3.8 | 9 | 2.3 | – |
| N | – | – | – | – | 0.709 |
| N0 | 198 | 44.4 | 191 | 48.4 | – |
| N1 | 160 | 35.9 | 137 | 34.7 | – |
| N2 | 51 | 11.4 | 36 | 9.1 | – |
| N3 | 32 | 7.2 | 28 | 7.1 | – |
| Nx | 5 | 1.1 | 3 | 0.8 | – |
| M | – | – | – | – | 0.496 |
| M0 | 368 | 82.5 | 336 | 85.1 | – |
| M1 | 9 | 2.0 | 9 | 2.3 | – |
| Mx | 69 | 15.5 | 50 | 12.7 | – |
| Stage | – | – | – | – | 0.317 |
| Stage I | 82 | 18.4 | 75 | 19.0 | – |
| Stage II | 243 | 54.5 | 233 | 59.0 | – |
| Stage III | 112 | 25.1 | 78 | 19.7 | – |
| Stage IV | 9 | 2.0 | 9 | 2.3 | – |
BC, breast cancer.