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Table 1 Patient demographics and tumour characteristics

From: Biological dosimetry for breast cancer radiotherapy: a comparison of external beam and intraoperative radiotherapy

  n = 31
Mean Age 64.5 years (range 41.1-94.5)
Invasive ductal carcinoma 24 (77%)
Invasive lobular carcinoma 1 (3%)
Ductal carcinoma in situ (DCIS) only 6 (20%)
Median size of tumour 18 mm (range 0.2-53.5 mm)
  n = 25 (excluding DCIS)
   ER +ve 23 (92%)
   PR +ve 21 (84%)
   HER 2 +ve 2 (8%)
   Grade 1 10 (40%)
   Grade 2 9 (36%)
   Grade 3 6 (24%)