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Table 6 Historical control/set comparison of re-excision procedures

From: The impact of use of an intraoperative margin assessment device on re-excision rates

  Total Per Surgeon
   1 2 3 4
MarginProbe Procedures Lumpectomy procedures 165 39 42 39 45
  Re-excision procedures 16 3 7 4 2
  Re-excision rate 9.7% 8% 17% 10% 4%
Historical Lumpectomy procedures 186 51 48 46 41
  Re-excision procedures 48 8 21 14 5
  Re-excision rate 25.8% 16% 44% 30% 12%
Reduction Absolute Reduction (% points) 16.1% 8.0% 23.8% 20.2% 7.8%
  Relative reduction 62% 51% 62% 66% 64%
  P-value <0.0001