Table 3: Crude and adjusted final mastectomy rates among women in Canada* with unilateral invasive breast cancer 
(n = 40 875), 2007/08 to 2009/10, by province
ProcedureNo. of women†‡
BCABSKMBONNBNSPEINLCanada
Breast-conserving surgery3 8572 161 5741 24713 180 712 768 9826222 859
Mastectomy3 2792 7241 076 712 7 920 626 96514057418 016
Total7 1364 8851 6501 95921 1001 3381 73323883640 875
Crude§ mastectomy rate, % 46 56 65 36 38 47 56 59 69 44
Adjusted¶ mastectomy rate, % 45 56 60 35 39 41 52 56 61NA

Note: NA = not applicable.
*Quebec, Yukon, Northwest Territories and Nunavut were not included in this analysis.
†Unless otherwise stated.
‡Women for whom age, neighbourhood income quintile or travel time could not be calculated (n = 972) were excluded.
§Crude rates in this table differ from those presented in Table 2 because of exclusions from the logistic regression.
¶Adjusted for age, neighbourhood income quintile and travel time.