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Table 6 Number of cases and percentage agreement between Office for National Statistics and National Health Service Breast Screening Programme 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

  ONS assigned histology code
  Invasive ductal carcinoma Ductal carcinoma in situ
NHSBSP histology     
   Invasive ductal carcinoma 3,017 93% 30 <1%
   Other specified invasive histology 90 3% 4 <1%
   Other non-specified invasive histology 19 <1% 16 2%
   Ductal carcinoma in situ 101 3% 976 95%
   Other specified non-invasive histology 1 <1% 6 <1%
   Other non-specified non-invasive histology 0 0 0 0
Total 3,228 100% 1,032 100%
  1. NHSBSP, National Health Service Breast Screening Programme; ONS, Office for National Statistics.