Table 6.
Patients with sentinel lymph node biopsy (n = 360)
| Patients | pN + (sn) | % | p-value | |
|---|---|---|---|---|
| Age (years) | ||||
| ≤50 | 58 | 13 | 22.4 | n.s. |
| >50 | 302 | 63 | 20.9 | |
| BMI | ||||
| <25 | 146 | 31 | 21.2 | n.s. |
| 25-29.9 | 125 | 26 | 20.8 | |
| ≥30 | 89 | 19 | 21.3 | |
| Tumour stage | ||||
| pT1a/b | 64 | 7 | 10.9 | 0.009 |
| pT1c | 182 | 32 | 17.6 | |
| pT2 | 111 | 37 | 33.3 | |
| Histological subtype | ||||
| Ductal | 259 | 57 | 22 | n.s. |
| Lobular | 31 | 8 | 25.8 | |
| Others | 70 | 11 | 15.7 | |
| Grading | ||||
| G1 | 63 | 5 | 7.9 | 0.014 |
| G2 | 211 | 48 | 22.7 | |
| G3 | 86 | 23 | 26.7 | |
| Lymphangiosis | ||||
| No | 250 | 21 | 8.4 | <0.001 |
| Yes | 110 | 55 | 50 | |
| Growth pattern | ||||
| Unifocal | 335 | 65 | 19.4 | 0.021 |
| Multicentric | 22 | 9 | 40.9 | |
| ER status | ||||
| Positive | 301 | 64 | 21.3 | n.s. |
| Negative | 59 | 12 | 20.3 | |
| PR status | ||||
| Positive | 270 | 57 | 21.1 | n.s. |
| Negative | 90 | 19 | 21.1 | |
| HER2 status | ||||
| Negative | 336 | 73 | 21.7 | n.s |
| Positive | 24 | 3 | 12.5 | |
| Ki-67 | ||||
| ≤14% | 142 | 24 | 16.9 | 0.067 |
| >14% | 194 | 47 | 24.2 | |
| Total | 360 | 76 | 21.1 |