Table 4 PD-1/PD-L1 expression in metastatic lymph node.

From: Expression of PD-1/PD-L1 in primary breast tumours and metastatic axillary lymph nodes and its correlation with clinicopathological parameters

Molecular subtype

total number

PD-1 positive (LN)

χ2

p

PD-L1 positive (LN)

χ2

p

Luminal A

10

2 (20%)

5.52

0.138

0 (0%)

4.95

0.15

Luminal B

23

14 (60.8%)

  

4 (17.4%)

  

HER-2+

10

5 (50%)

  

1 (10%)

  

TNBC

4

3 (75%)

  

2 (50%)

  
  1. Fisher’ exact test was used for comparison.
  2. No significant difference was observed.
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