Patient characteristics
| Characteristic | No of patients | % |
| All cases* | 40 | 100 |
| Histological type | ||
| Ductal carcinoma | 31 | 77.5 |
| Lobular carcinoma | 5 | 12.5 |
| Other carcinoma | 4 | 10 |
| Tumour size (mm) | ||
| ≤20 | 23 | 57.5 |
| >20 | 17 | 42.5 |
| Nodal status | ||
| pN0 | 27 | 67.5 |
| pN1a | 10 | 25 |
| pN2a | 3 | 7.5 |
| Histological grade | ||
| G1 | 8 | 20 |
| G2 | 26 | 65 |
| G3 | 6 | 15 |
| Tumour proliferation (surgery specimen)† | ||
| MIB-1 <14% | 21 | 52.5 |
| MIB-1≥14% | 16 | 37.5 |