From: “Clinical significance of multifocal and multicentric breast cancers and choice of surgical treatment: a retrospective study on a series of 1158 cases”
RR
95% C.I.
p
Age class
<50 y.o.
1.66
1.099-2.51
0.016
Histotype
Infiltrating lobular
2.92
1.33-6.38
0.007
Nodal status
pN1
2.34
1.47-3.72
<0.001
pN2
2.23
1.26-3.94
0.006
pN3
8.67
4.84-15.52