|
Characteristic
|
ER-Positive
|
ER-Negative
|
|---|
|
Age<35
|
35≤Age<50
|
P-value
|
Age<35
|
35≤Age<50
|
P-value
|
|---|
|
(N = 147)
|
(N = 901)
|
(N = 134)
|
(N = 663)
|
|---|
|
Postoperative T stage
|
|
ypT0, ypTis
|
6 (4.1)
|
27 (3.0)
|
0.638
|
28 (20.9)
|
111 (16.8)
|
0.310
|
|
ypT1-ypT4
|
141 (95.9)
|
874 (97.0)
| |
106 (79.1)
|
552 (83.2)
| |
|
ypT1
|
47 (32.2)
|
351 (39.1)
| |
29 (21.6)
|
188 (28.4)
| |
|
ypT2
|
69 (47.3)
|
348 (38.8)
| |
45 (33.6)
|
204 (30.8)
| |
|
ypT3
|
22 (15.1)
|
158 (17.6)
| |
23 (17.2)
|
94 (14.2)
| |
|
ypT4
|
2 (1.4)
|
14 (1.3)
| |
0 (0)
|
0 (0)
| |
|
Postoperative N stage
|
|
ypN0
|
55 (37.4)
|
296 (32.9)
|
0.515
|
77 (57.5)
|
301 (45.4)
|
0.016
|
|
pN1-ypN3
|
92 (62.6)
|
604 (67.0)
| |
52 (38.8)
|
323 (47.9)
| |
|
Pathologic response
|
|
Complete: breast and axilla
|
7 (4.8)
|
37 (4.1)
|
0.713
|
26 (19.4)
|
74 (11.2)
|
0.009
|
|
Complete: breast-only
|
1 (0.7)
|
3 (0.3)
|
1.000
|
3 (2.2)
|
45 (6.7)
|
0.006
|
- NOTE: Data are presented as No. (%) unless otherwise specified
- ER estrogen receptor
