Table 3 Multivariate analysis for non-SLN metastases

Pathology (ILC/IDC)

2.81

1.09–7.41

0.037

Age (≥ 50/<50)

0.61

0.32–1.19

0.142

Tumor size

T1

0.87

0.17–4.91

0.861

T2

1.74

0.27–11.01

0.521

T3

1.16

0.14–9.32

0.919

Tumor Grade

G1

1.00

G2

1.19

0.65–2.19

0.589

G3

0.90

0.43–1.88

0.756

Molecular subtype

Luminal A

1.47

0.77–2.79

0.232

Luminal B

1.22

0.98–2.42

0.751

HER2 enriched

1.74

0.93–2.94

0.813

TNBC

1.78

0.82–2.99

0.643

Number of positive SLN (≥ 3 / ≤2)

4.97

1.65-1

0.005