| Surgical Treatment |
Extensive disease |
Mastectomy rates, extensive disease |
Non-extensive disease |
Mastectomy rates, non-extensive disease |
P value |
| Unifocal invasive cancer without multifocal or diffuse insitucomponent |
4.2% (18/429) |
66.7% (12/18) |
95.8% (411/429) |
19.2% (79/411) |
p <0.0001 |
| Unifocal invasive cancer with multifocal or diffuse insitucomponent |
62% (106/171) |
29.2% (31/106) |
38% (65/171) |
23.1% (15/65) |
p=0.4948 |
| Multifocal invasive cancer, any insitu component |
55.5% (81/146) |
63% (51/81) |
44.5% (65/146) |
23.1% (15/65) |
p <0.0001 |
| Diffuse invasive cancer, any insitu component |
70% (19/27) |
68.4% (13/19) |
30% (8/27) |
37.5% (3/8) |
p=0.3081 |
| Total |
29% (224/773) |
47.8% (107/224) |
71% (549/773) |
20.4% (112/549) |
p <0.0001 |
