Table 1.
Patient and tumour characteristics
| No. of patients (n = 1045) | |
|---|---|
| Axillary procedures | 980 (93·8) |
| Sentinel node biopsies | 390 |
| Axillary sampling | 29 |
| Axillary dissection | 561 |
| Tumour type | |
| Invasive ductal carcinoma | 892 (85·4) |
| Invasive lobular carcinoma | 104 (10·0) |
| Mixed invasive ductal and lobular carcinoma | 32 (3·1) |
| Other* | 17 (1·6) |
| Lymphovascular invasion | |
| Yes | 333 (31·9) |
| No | 712 (68·1) |
| ER status | |
| Positive | 881 (84·3) |
| Negative | 164 (15·7) |
| Excision margin | |
| Clear (≥ 1 mm) | 798 (76·4) |
| Close (< 1 mm) | 110 (10·5) |
| Reaches | 15 (1·4) |
| Re‐excision | 122 (11·7) |
Values in parentheses are percentages.
*
Includes invasive mucinous, micropapillary, medullary carcinoma. ER, oestrogen receptor.