Characteristic | nSLN-negative (n = 177) | nSLN-positive (n = 96) | t/z/x2 | P value |
---|---|---|---|---|
Age at diagnosis (year) (mean ± SD) | 51.24 ± 10.44 | 51.89 ± 11.93 | −0.466 | 0.642 |
BMI (kg/m2) (median (p25–p75)) | 23.31 (21.24–25.89) | 23.12 (21.40–26.43) | −0.707 | 0.480 |
TS (mm) (median (p25–p75)) | 20 (15–25) | 25 (20–30) | −3.429 | 0.001 |
Total number of SLN (median (p25–p75)) | 4 (3–5) | 3 (2–4) | −2.937 | 0.003 |
Number of negative SLN (median (p25–p75) ) | 2.00 (1.00–4.00) | 1.50 (0.25–3.00) | −3.959 | 0.001 |
Ratio of SLN macrometastases (median (p25–p75)) | 0.33 (0.25–0.50) | 0.50 (0.33–0.92) | −4.987 | 0.001 |
NLR (median (p25–p75)) | 1.99 (1.61–2.68) | 2.00 (1.53–2.67) | −0.803 | 0.423 |
Histological grade | 6.428 | 0.093 | ||
I | 20 (11.3) | 3 (3.1) | ||
II | 113 (63.8) | 63 (65.6) | ||
III | 34 (19.2) | 21 (21.9) | ||
Unknown | 10 (5.6) | 9 (9.4) | ||
Pathological type | 4.164 | 0.041 | ||
Invasive ductal carcinoma | 172 (97.2) | 88 (91.7) | ||
Others | 5 (2.8) | 8 (8.3) | ||
LVI | 6.893 | 0.009 | ||
Negative | 119 (67.2) | 49 (51.0) | ||
Positive | 58 (32.8) | 47 (49.0) | ||
ER status | 0.092 | 0.761 | ||
<10% | 34 (19.2) | 17 (17.7) | ||
≥10% | 143 (80.8) | 79 (82.3) | ||
PR status | 0.026 | 0.872 | ||
<10% | 57 (32.2) | 30 (31.3) | ||
≥10% | 120 (67.8) | 66 (68.8) | ||
Ki-67 index | 1.660 | 0.436 | ||
<14% | 52 (29.4) | 24 (25.0) | ||
≥14%, ≤30% | 67 (37.9) | 44 (45.8) | ||
>30% | 58 (32.8) | 28 (29.2) | ||
Her2 status | 0.180 | 0.672 | ||
Negative | 135 (76.3) | 71 (74.0) | ||
Positive | 42 (23.7) | 25 (26.0) | ||
Molecular type | 3.426 | 0.489 | ||
Luminal A | 65 (36.7) | 27 (28.1) | ||
Luminal B-Her (−) | 58 (32.8) | 36 (37.5) | ||
Luminal B-Her2 (+) | 22 (12.4) | 17 (17.7) | ||
ERBB2 (+) | 15 (8.5) | 6 (6.3) | ||
Basal-like | 17 (9.6) | 10 (10.4) | ||
Tumor site | 11.353 | 0.023 | ||
Upper outer | 80 (45.2) | 61 (63.5) | ||
Lower outer | 22 (12.4) | 13 (13.7) | ||
Lower inner | 15 (8.5) | 3 (3.2) | ||
Upper inner | 45 (25.4) | 13 (13.7) | ||
Central portion | 15 (8.5) | 6 (6.3) | ||
Multifocal lesions | 2.513 | 0.113 | ||
No | 169 (95.5) | 87 (90.6) | ||
Yes | 8 (4.5) | 9 (9.4) | ||
Menstrual status | 1.887 | 0.170 | ||
Premenopausal | 102 (57.6) | 47 (49.0) | ||
Postmenopausal | 75 (42.4) | 49 (51.0) | ||
Family history of malignancy | 3.227 | 0.196 | ||
None | 133 (75.1) | 71 (74.0) | ||
Breast or ovarian cancer | 16 (9.0) | 4 (4.2) | ||
Other malignant tumors | 28 (15.8) | 21 (21.9) |