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Table 4 Ki67 expression and change value at CNB and SRB in different surgery time intervals

From: Surgery time interval and molecular subtype may influence Ki67 change after core needle biopsy in breast cancer patients

  No. Median Ki67 % (IQR) Mean Ki67 % (SD)
All populations 276   
  CNB   20 (10, 40) 26.2 (22.0)
  SRS   25 (10, 40) 29.1 (22.0)
  Ki67 changea   0 (-4.5. 10) 2.9 (13.2)
1-2 days 55   
  CNB   20 (10, 40) 27.7 (21.0)
  SRS   20 (10, 40) 26.6 (19.1)
  Ki67 changea   0 (-10, 5) -1.1 (11.0)
3-4 days 113   
  CNB   20 (10, 50) 28.4 (24.6)
  SRS   25 (10, 50) 30.5 (23.0)
  Ki67 changea   0 (-5, 10) 2.1 (15.2)
≥5 days 108   
  CNB   17.5 (10, 30) 23.2 (20.8)
  SRS   25 (10, 40) 28.8 (22.4)
  Ki67 changea   5 (0, 10) 5.6 (11.4)
  1. aKi67 change, SRS minus CNB
  2. Abbreviation: CNB core needle biopsy, IQR inter quartile range, SRS surgically removed samples, SD standard deviation