Table 1 Baseline characteristics of non-SLN positive and non-SLN negative patients
Variables | Subgroup | No. of patients | ||||
|---|---|---|---|---|---|---|
Non-SLN negative | Non-SLN positive | P | ||||
(n = 34, 47.9%) | (n = 37, 52.1%) | |||||
Side | Left | 18(52.9%) | 20(54.1%) | 0.925 | ||
Right | 16(47.1%) | 17(45.9%) | ||||
Menopause | No | 21(61.8%) | 18(48.6%) | 0.267 | ||
Yes | 13(38.2%) | 19(51.4%) | ||||
Number of positive SLN | 1 | 20(58.8%) | 14(37.8%) | 0.189 | ||
2 | 9(26.5%) | 13(35.1%) | ||||
3 | 5(14.7%) | 10(27.0%) | ||||
LNR | 0.41(± 0.21) | 0.63(± 0.31) | < 0.001 | |||
Tumor location | Upper outer quadrant | 23(67.6%) | 21(56.8%) | 0.421 | ||
Upper inner quadrant | 3(8.8%) | 4(10.8%) | ||||
Lower inner quadrant | 1(2.9%) | 0(0.0%) | ||||
Lower outer quadrant | 5(14.7%) | 5(13.5%) | ||||
Central | 2(5.9%) | 7(18.9%) | ||||
Long axis of LN(Mean ± SB, mm) | 6.6(± 7.6) | 12.4(± 8.8) | 0.004 | |||
Short axis of LN(Mean ± SB, mm) | 3.4(± 4.2) | 6.9(± 4.8) | 0.002 | |||
Blood flow | No | 20(58.8%) | 22(59.5%) | 0.957 | ||
Yes | 14(41.2%) | 15(40.5%) | ||||
Calcification | No | 32(94.1%) | 33(89.2%) | 0.456 | ||
Yes | 2(5.9%) | 4(10.8%) | ||||
Cortex | Normal | 21(61.8%) | 12(32.4%) | 0.013 | ||
Thickening | 13(38.2%) | 25(67.6%) | ||||
Lymphatic hilum | Normal | 22(64.7%) | 18(48.6%) | 0.173 | ||
Disappear | 12(35.3%) | 19(51.4%) | ||||
Histological grade | 1 | 13(38.2%) | 6(16.2%) | 0.103 | ||
2 | 19(55.9%) | 29(78.4%) | ||||
3 | 2(5.9%) | 2(5.4%) | ||||
ER | <=10% | 10(29.4%) | 13(35.1%) | 0.607 | ||
> 10% | 24(70.6%) | 24(64.9%) | ||||
PR | <=20% | 21(61.8%) | 16(43.2%) | 0.119 | ||
> 20% | 13(38.2%) | 21(56.8%) | ||||
HER-2 | Negative | 27(79.4%) | 29(78.4%) | 0.915 | ||
Positive | 7(20.6%) | 8(21.6%) | ||||
KI-67(Mean ± SB) | < 10% | 1(2.9%) | 3(8.1%) | 0.640 | ||
10–30% | 7(20.6%) | 7(18.9%) | ||||
> 30% | 26(76.5%) | 27(73.0%) | ||||
cT | 1 | 11(32.4%) | 8(21.6%) | 0.308 | ||
2 | 23(67.6%) | 29(78.4%) | ||||
Response | SD + PD | 22(64.7%) | 24(64.9%) | 0.989 | ||
CR + PR | 12(35.3%) | 13(35.1%) | ||||
cN | 0 | 10(29.4%) | 7(18.9%) | 0.301 | ||
1 | 24(70.6%) | 30(81.1%) | ||||