Table 1 Baseline and clinical characteristics of patients
Variable | Statistic | |
|---|---|---|
Age—years | Mean ± SD | 48.96 ± 11.44 |
Median (IQR) | 48.00 (41, 57) | |
Tumor size—cm | Mean ± SD | 2.43 ± 1.13 |
Median (IQR) | 2.20 (1.70, 3) | |
Involved breast side—no. (%) | Right | 1291 (48) |
Left | 1396 (52) | |
Tumor grade—no. (%) | 1 | 413 (16.9) |
2 | 1442 (59) | |
3 | 591 (24.2) | |
In-situ component—no. (%) | Yes | 1570 (58.4) |
No | 851 (31.7) | |
Unclear | 6 (0.2) | |
Tumor necrosis—no. (%) | Yes | 1438 (53.5) |
No | 944 (35.1) | |
Unclear | 6 (0.2) | |
Surface receptors—no. (%) | ER positive | 1972 (73.4) |
PR positive | 1836 (68.3) | |
HER2 positive | 608 (22.6) | |
Triple negative | 273 (10.1) | |
Nucleus grade—no. (%) | 1 | 389 (14.5) |
2 | 673 (25) | |
3 | 425 (15.8) |