Table 1 Population demographics and histological features reported as mean (SD) or prevalence (percentage)
Features | Mean/prevalence |
|---|---|
Age (in years at the time of surgery) | 61 (13.1) |
Histologic type | |
DCIS | 58 (8) |
IDC | 553 (77) |
ILC | 88 (12) |
Others | 27 (3) |
Clinical stage | |
Stage 0 (in situ)# | 51 (7) |
Stage I | 224 (31) |
Stage II | 275 (38) |
Stage III | 61 (8) |
Stage IV | 7 (1) |
NACT | 30 (4) |
Recurrence | 56 (8) |
Benign and others | 22 (3) |
Histological grade of invasive cancer | |
Grade 1 | 100 (14) |
Grade 2 | 261 (36) |
Grade 3 | 261 (36) |
Others | 104 (15) |
Other histological features* | |
Estrogen receptor positive | 550 (85) |
Progesterone receptor positive | 478 (74) |
HER2 amplified | 83 (13) |
LVI positive | 135 (21) |
Node positive | 241 (39) |