|
Characteristics
|
Before PSM (2267)
|
After PSM (1066)
|
|---|
|
No RT
|
RT
|
P-value
|
No RT
|
RT
|
P-value
|
|---|
|
Age at diagnosis
| | |
< 0.05
| | |
0.057
|
|
< 60
|
504 (42.7%)
|
592 (54.5%)
| |
264 (49.5%)
|
296 (55.5%)
| |
|
≥ 60
|
677 (57.3%)
|
494 (45.5%)
| |
269 (50.5%)
|
237 (44.5%)
| |
|
Ethnicity
| | |
< 0.05
| | |
0.667
|
|
White
|
929 (78.7%)
|
825 (76.0%)
| |
402 (75.4%)
|
408 (76.5%)
| |
|
Black
|
163 (13.8%)
|
190 (17.5%)
| |
95 (17.8%)
|
85 (15.9%)
| |
|
Others
|
89 (7.5%)
|
71 (6.5%)
| |
36 (6.8%)
|
40 (7.5%)
| |
|
Marital status
| | |
0.263
| | |
0.736
|
|
Single
|
185 (15.7%)
|
151 (13.9%)
| |
86 (16.1%)
|
81 (15.2%)
| |
|
Married
|
996 (84.3%)
|
935 (86.1%)
| |
447 (83.9%)
|
452 (84.8%)
| |
|
Grade
| | |
0.539
| | |
0.472
|
|
G1
|
64 (5.4%)
|
56 (5.2%)
| |
23 (4.3%)
|
24 (4.5%)
| |
|
G2
|
173 (14.6%)
|
137 (12.6%)
| |
66 (12.4%)
|
69 (12.9%)
| |
|
G3
|
888 (75.2%)
|
839 (77.3%)
| |
416 (78.0%)
|
400 (75.0%)
| |
|
G4
|
56 (4.7%)
|
54 (5.0%)
| |
28 (5.3%)
|
40 (7.5%)
| |
|
ER status
| | |
0.413
| | |
0.456
|
|
Negative
|
979 (82.9%)
|
885 (81.5%)
| |
451 (84.6%)
|
441 (82.7%)
| |
|
Positive
|
202 (17.1%)
|
201 (18.5%)
| |
82 (15.4%)
|
92 (17.3%)
| |
|
PR status
| | |
0.058
| | |
0.192
|
|
Negative
|
1044 (88.4%)
|
930 (85.6%)
| |
475 (89.1%)
|
460 (86.3%)
| |
|
Positive
|
137 (11.6%)
|
156 (14.4%)
| |
58 (10.9%)
|
73 (13.7%)
| |
|
Stage T
| | |
< 0.05
| | |
0.457
|
|
≤ 5 cm
|
937 (79.3%)
|
814 (75.0%)
| |
373 (70.0%)
|
385 (72.2%)
| |
|
> 5 cm
|
244 (20.7%)
|
272 (25.0%)
| |
160 (30.0%)
|
148 (27.8%)
| |
|
Stage N
| | |
0.090
| | |
0.202
|
|
N0
|
929 (78.7%)
|
811 (74.7%)
| |
381 (71.5%)
|
382 (71.7%)
| |
|
N1
|
173 (14.6%)
|
195 (18.0%)
| |
96 (18.0%)
|
112 (21.0%)
| |
|
N2
|
51 (4.3%)
|
45 (4.1%)
| |
35 (6.6%)
|
22 (4.1%)
| |
|
N3
|
28 (2.4%)
|
35 (3.2%)
| |
21 (3.9%)
|
17 (3.2%)
| |
|
Stage TNM
| | |
< 0.05
| | |
0.848
|
|
I
|
247 (20.9%)
|
283 (26.1%)
| |
109 (20.5%)
|
115 (21.6%)
| |
|
II
|
779 (66.0%)
|
605 (55.7%)
| |
314 (58.9%)
|
314 (58.9%)
| |
|
III
|
155 (13.1%)
|
198 (18.2%)
| |
110 (20.6%)
|
104 (19.5%)
| |
|
Breast operation
| | |
< 0.05
| | |
0.667
|
|
Lumpectomy
|
254 (21.5%)
|
692 (63.7%)
| |
248 (46.5%)
|
240 (45.0%)
| |
|
Mastectomy
|
927 (78.5%)
|
394 (36.3%)
| |
285 (53.5%)
|
293 (55.0%)
| |
|
Chemotherapy
| | |
< 0.05
| | |
0.111
|
|
Not done/unknown
|
548 (46.4%)
|
254 (23.4%)
| |
176 (33.0%)
|
151 (28.3%)
| |
|
Done
|
633 (53.6%)
|
832 (76.6%)
| |
357 (67.0%)
|
382 (71.7%)
| |
|
Axilla LN operation
| |
0.050
| | |
0.425
|
|
SLNB
|
581 (49.2%)
|
580 (53.4%)
| |
261 (49.0%)
|
247 (46.3%)
| |
|
ALND
|
600 (50.8%)
|
506 (46.6%)
| |
272 (51.0%)
|
286 (53.7%)
| |
- SLNB Sentinel lymph node biopsy, ALND axillary lymph node dissection
- Significant results are in italic
