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Table 5 Overall agreement where data allow for coding of 12 site specific histologies in participants of the Million Women Study

From: Breast cancer histological classification: agreement between the Office for National Statistics and the National Health Service Breast Screening Programme

 

NHSBSP

 

Invasive ductal

Invasive lobular

Invasive tubular

Invasive mixed

Other specified invasive

Invasive mucinous

Invasive medullary

Ductal carcinoma in situ

Lobular carcinoma in situ

Other specified non-invasive

Ductal + lobular carcinoma in situ

Pagets

Total

ONS

             

   Invasive ductal

3,017

20

46

14

6

4

0

101

1

1

1

0

3,211

   Invasive lobular

32

515

9

19

3

3

0

1

4

0

0

0

586

   Invasive tubular

39

1

280

2

0

0

1

1

0

0

0

0

324

   Invasive mixed

68

19

1

14

2

1

0

1

0

0

0

0

106

   Other specified invasive

21

4

4

0

23

0

0

5

0

0

0

0

57

   Invasive mucinous

3

0

1

3

1

42

1

0

0

0

0

0

51

   Invasive medullary

4

0

0

1

0

2

13

0

0

0

0

0

20

   Ductal carcinoma in situ

30

1

0

0

0

0

1

976

3

3

8

0

1,022

   Lobular carcinoma in situ

0

0

0

0

0

0

0

5

32

0

5

0

42

   Other specified non-invasive

1

0

0

0

0

0

0

18

0

0

0

1

20

   Ducal + lobular carcinoma in situ

0

0

0

0

0

0

0

7

1

0

10

0

18

   Pagets

0

1

0

0

0

0

0

0

0

0

0

0

1

Total

3,215

561

341

53

35

52

16

1,115

41

4

24

1

5,458

Percentage agreement

            

90%

Kappa statistic

     

13

      

0.8

  1. NHSBSP, National Health Service Breast Screening Programme; ONS, Office for National Statistics.