Table 4: Rates of re-excision among women who underwent breast-conserving surgery for invasive breast cancer 
as the index procedure (n = 38 517), by province, 2007/08 to 2009/10
ProcedureNo. of women*
BCABSKMBONQCNBNSPEINLCanada
Index breast-conserving surgery4 8772 4907901 39614 73811 79283792813348138 517
Re-excision
Breast-conserving surgery 995 229176 46 1 756 1 237137109 19 67 4 776
Mastectomy 837 286114 198 1 325 813118134 33204 4 078
Total1 832 515290 244 3 081 2 050255243 52271 8 854
Re-excision rate, % 38 21 37 17 21 17 30 26 39 56 23

*Unless otherwise stated.