Table 4 Comparison of the clinicopathological data in NSR according toSLNM risk grade
|  | SLNM low-mid risk n = (519) | SLNM high risk n = (53) | P |
|---|---|---|---|
Gender | Â | Â | 0.008 |
 Male | 422(92.3%) | 35(7.7%) |  |
 Female | 97(84.3%) | 18(15.7%) |  |
Age | Â | Â | 0.103 |
  < 60 years | 272(88.9%) | 34(11.1%) |  |
  ≥ 60 years | 247(92.9%) | 19(7.1%) |  |
Tumor size | Â | Â | 0.672 |
  < 5 cm | 241(91.3%) | 23(8.7%) |  |
  ≥ 5 cm | 278(90.3%) | 30(9.7%) |  |
Differentiation | Â | Â | 0.873 |
 Well | 241(90.9%) | 24(9.1%) |  |
 Poor | 278(90.6%) | 29(9.4%) |  |
Bormann type | Â | Â | 0.148 |
 Bor 1–2 | 101(94.4%) | 6(5.6%) |  |
 Bor 3–4 | 418(89.9%) | 47(10.1%) |  |
pT stage | Â | Â | 0.084 |
 pT2 | 73(97.3%) | 2(2.7%) |  |
 pT3 | 188(88.7%) | 24(11.3%) |  |
 pT4a | 258(90.5%) | 27(9.5%) |  |
pTNM stage |  |  | < 0.001 |
 IB-IIA | 138(100%) |  |  |
 IIB-IIIA | 274(93.5%) | 19(6.5%) |  |
 IIIB-IIIC | 107(75.9%) | 34(24.1%) |  |