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Table 3 Subtype agreement as counts, and corresponding kappa value

From: An international reproducibility study validating quantitative determination of ERBB2, ESR1, PGR, and MKI67 mRNA in breast cancer using MammaTyper®

Sample

Not defined

HER2-positive (nonluminal)

Luminal B-like (HER2-positive)

Luminal B-like (HER2-negative)

Triple-negative (ductal)

Luminal A-like

1

0

0

0

0

0

40

2

0

0

0

0

0

40

3

0

0

40

0

0

0

4

0

0

0

40

0

0

5

0

0

0

40

0

0

6

0

0

0

40

0

0

7

0

0

0

0

40

0

8

12

0

28

0

0

0

9

0

30

0

0

0

0

10

0

30

0

0

0

0

11

0

0

0

26

0

4

12

0

0

0

30

0

0

13

0

0

0

29

0

1

14

0

0

0

0

0

30

15

0

0

0

1

0

29

16

0

0

0

29

0

0

17

0

0

0

30

0

0

18

0

0

0

0

0

30

19

0

0

0

29

0

1

20

30

0

0

0

0

0

21

20

0

0

0

0

10

22

0

0

0

0

30

0

23

14

0

0

0

16

0

24

0

30

0

0

0

0

kappa Statistic

0.90

  1. Abbreviations: HER2 Human epidermal growth factor receptor 2
  2. Boldface values represent summary of measurements