| Training set | Validation set |
---|---|---|
Number of patients | 92 | 95 |
Age median | 59 | 58 |
Histologic type | Â | Â |
IDC | 75 | 54 |
ILC | 8 | 8 |
Other | 9 | 33 |
Histologic grade | Â | Â |
G1 | 8 | 14 |
G2 | 33 | 31 |
G3 | 47 | 49 |
Missing | 4 | 1 |
Tumor size | Â | Â |
T ≤2 cm | 34 | 65 |
T >2Â cm | 55 | 30 |
Missing | 3 | Â |
Estrogen receptor | Â | Â |
Positive | 58 | 73 |
Negative | 28 | 22 |
Missing | 6 | Â |
Progesterone receptor | Â | Â |
Positive | 48 | 73 |
Negative | 41 | 22 |
Missing | 3 | Â |
HER2 overexpression | Â | Â |
Positive | 17 | 21 |
Negative | 60 | 73 |
Missing | 15 | 1 |
Lymph node involvement | Â | Â |
Positive | 43 | 36 |
Negative | 41 | 37 |
Missing | 8 | 22 |