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Table 7 Number of cases and percentage agreement between National Health Service Breast Screening Programme and Office for National Statistics in relation to invasive ductal carcinoma, ductal carcinoma in situ and other invasive and non-invasive 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 assigned histology code

 

Invasive ductal carcinoma

Ductal carcinoma in situ

ONS histology

    

   Invasive ductal carcinoma

3,017

88%

101

8%

   Other specified invasive histology

167

5%

8

<1%

   Other non-specified invasive histology

224

6%

31

3%

   Ductal carcinoma in situ

30

<1%

976

82%

   Other specified non-invasive histology

1

<1%

30

3%

   Other non-specified non-invasive histology

3

<1%

45

4%

Total

3,442

100%

1,191

100%

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