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Table 1 Clinicopathologic characteristics of the studies triple-negative tumours

From: Gene-expression molecular subtyping of triple-negative breast cancer tumours: importance of immune response

Variable

All

Cluster 1

Cluster 2

Cluster 3

P -value

( n= 107)

( n= 24)

( n= 48)

( n= 35)

Age (years; mean ± SD)

56.9 ± 12.8

64.6 ± 10.6

56.8 ± 12.9

51.9 ± 11.7

0.0006

SBR grade

     

1

2

2

0

0

 

2

14

10

1

3

 

3

91

12

47

32

<0.0001

Tumour size (mm; mean ± SD)

22.3 ± 12.7

27.3 ± 18.3

22.8 ± 12.1

18.5 ± 7.0

0.184

Nodal status

     

0

77

17

38

22

 

1

30

7

10

13

0.266

NPI

     

1

13

9

1

3

 

2

71

8

40

23

 

3

22

6

7

9

<0.0001

Radiotherapy

     

No

4

2

1

1

 

Yes

103

22

47

34

0.436

Adjuvant therapy

     

No

12

6

4

2

 

Yes

95

18

44

33

0.071

Hormonotherapy

     

No

106

23

48

35

 

Yes

1

1

0

0

0.224

  1. NPI, Nottingham prognostic index; SBR, Scarff Bloom Richardson.