Table 3.
Clinical and pathologic characteristics of patients clinically suspected of lymph node metastasis for subgroups based on type of axillary operation
| Characteristics | SLNB (n=176) | ALND (n= 180) | P(Chi-square test) |
|---|---|---|---|
| Mean age ± SD |
52.00 ± 9.61 |
47.00 ± 9.45 |
0.743 |
| Axillary recurrence |
|
|
0.420 |
| No |
171 |
172 |
|
| Yes |
5 |
8 |
|
| Recurrence |
|
|
0.049 |
| No |
159 |
151 |
|
| Yes |
16 |
29 |
|
| T stage |
|
|
0.001 |
| pT1 |
120 |
86 |
|
| pT2 |
45 |
78 |
|
| pT3 |
11 |
14 |
|
| pT4 |
0 |
2 |
|
| N stage |
|
|
0.001 |
| pN0 |
127 |
91 |
|
| pN1 |
35 |
74 |
|
| pN2 |
7 |
6 |
|
| pN3 |
7 |
9 |
|
| Stage |
|
|
0.001 |
| Stage I |
98 |
54 |
|
| Stage IIA |
41 |
63 |
|
| Stage IIB |
21 |
38 |
|
| Stage IIIA |
9 |
15 |
|
| Stage IIIB |
0 |
2 |
|
| Stage IIIC |
7 |
8 |
|
| Size of tumor, cm, mean ± SD |
2.06 ± 1.91 |
2.62 ± 1.70 |
0.019 |
| Histology |
|
|
0.013 |
| G1 |
47 |
27 |
|
| G2 |
73 |
96 |
|
| G3 |
43 |
48 |
|
| Nuclear |
|
|
0.104 |
| G1 |
22 |
20 |
|
| G2 |
103 |
90 |
|
| G3 |
45 |
65 |
|
| ER |
|
|
0.833 |
| Negative |
63 |
66 |
|
| Positive |
113 |
113 |
|
| PR |
|
|
0.311 |
| Negative |
71 |
79 |
|
| Positive |
105 |
101 |
|
| IHC |
|
|
0.525 |
| Negative/1+ |
92 |
89 |
|
| 2+ |
38 |
47 |
|
| 3+ |
46 |
41 |
|
| Lymphovascular invasion |
|
|
0.002 |
| No |
113 |
63 |
|
| Yes | 86 | 94 |
ER,estrogen receptor; PR,progesterone receptor; IHC,immunohistochemistry.