|
Age (years)a
|
53 (20–85)
|
|
Interval between initial surgery and screening MRIa (months)
|
27.8 (12.1–167.3)
|
|
Preoperative breast MRI
|
|
Yes
|
930 (89.1%)
|
|
No
|
114 (10.9%)
|
|
Pathology of initial breast cancer
|
|
Ductal carcinoma in situ
|
185 (17.7%)
|
|
Invasive ductal carcinoma
|
729 (69.8%)
|
|
Invasive lobular carcinoma
|
33 (3.2%)
|
|
Tubular carcinoma
|
25 (2.4%)
|
|
Cribiform carcinoma
|
3 (0.3%)
|
|
Mucinous carcinoma
|
23 (2.2%)
|
|
Invasive micropapillary carcinoma
|
6 (0.6%)
|
|
Metaplastic carcinoma
|
6 (0.6%)
|
|
Solid papillary carcinoma
|
10 (1.0%)
|
|
Others
|
24 (2.3%)
|
|
Type of surgery
|
|
Partial mastectomy
|
648 (62.1%)
|
|
Mastectomy
|
396 (37.9%)
|
|
Pathological T stage
|
|
TX
|
15 (1.4%)
|
|
T0
|
27 (2.6%)
|
|
Tis
|
188 (18.0%)
|
|
T1
|
624 (59.8%)
|
|
T2
|
176 (16.9%)
|
|
T3
|
12 (1.1%)
|
|
T4
|
2 (0.2%)
|
|
Pathological N stage
|
|
NX
|
7 (0.7%)
|
|
N0
|
822 (78.7%)
|
|
N1
|
182 (17.4%)
|
|
N2
|
27 (2.6%)
|
|
N3
|
6 (0.6%)
|
