Table 2.
Classification of 521 BC patients according to prognostic stage Eighth edition AJCC 2018 and prognostic stage modified using Ki67 (Ki67-PS).
| AJCC 2018 prognostic stage | AJCC 2018 prognostic stage modified by Ki67 (Ki67-PS) | |||||
|---|---|---|---|---|---|---|
| IA | IB | IIA | IIB | IIIA | Total | |
| IA | 411 | 0 | 0 | 0 | 0 | 411 |
| IB | 58 | 31 | 0 | 0 | 0 | 89 |
| IIA | 3 | 0 | 16 | 0 | 0 | 19 |
| IIB | 0 | 0 | 0 | 0 | 0 | 0 |
| IIIA | 0 | 0 | 0 | 0 | 2 | 2 |
| IIIB | 0 | 0 | 0 | 0 | 0 | 0 |
| IIIC | 0 | 0 | 0 | 0 | 0 | 0 |
| Total | 472 | 31 | 16 | 0 | 2 | 521 |
Bold values indicate the number of patients that were differently classified