Table 2.
Clinicopathologic and radiological characteristics screened after LASSO
| Characteristic | Non-ALNM N = 70 N (%) | ALNM N = 237 N (%) | P |
|---|---|---|---|
| Education | 0.0652 | ||
| Primary school and below | 15 (21.4%) | 36 (15.2%) | |
| Middle school | 30 (42.9%) | 139 (58.6%) | |
| College degree and above | 25 (35.7%) | 62 (26.2%) | |
| Menopausal status | 0.1132 | ||
| Yes | 25 (35.7%) | 110 (46.4%) | |
| No | 45 (64.3%) | 127 (53.6%) | |
| Reproductive history | 0.0833 | ||
| Yes | 66 (94.3%) | 233 (98.3%) | |
| No | 4 (5.7%) | 4 (1.7%) | |
| CA125 (U/mL) | 14 (11, 19) | 14 (10, 20) | 0.4834 |
| ER | 0.0142 | ||
| Positive | 42 (60.0%) | 178 (75.1%) | |
| Negative | 28 (40.0%) | 59 (24.9%) | |
| ER-positive percentage | 60 (0, 80) | 70 (1, 90) | 0.0854 |
| PR-positive percentage | 4 (0, 42) | 10 (0, 50) | 0.1944 |
| BI-RADS(US) | < 0.0012 | ||
| 5 | 27 (38.6%) | 154 (65.0%) | |
| 4c | 18 (25.7%) | 46 (19.4%) | |
| 4b | 12 (17.1%) | 28 (11.8%) | |
| 4a | 13 (18.6%) | 9 (3.8%) | |
| ALN cortical–medullary boundary | < 0.0012 | ||
| Clear | 60 (85.7%) | 70 (29.5%) | |
| Unclear | 10 (14.3%) | 167 (70.5%) | |
| ALN cortical thickness | < 0.0012 | ||
| Normal | 52 (74.3%) | 2 (0.8%) | |
| Thickening | 18 (25.7%) | 235 (99.2%) | |
| ALN short-axis diameter (mm) | 6.0 (5.8, 7.0) | 9.0 (7.0, 11.4) | < 0.0014 |
| ALN TIC type | < 0.0013 | ||
| III | 3 (4.3%) | 12 (5.1%) | |
| II | 31 (44.3%) | 178 (75.1%) | |
| I | 9 (12.9%) | 29 (12.2%) | |
| 0 | 27 (38.6%) | 18 (7.6%) | |
| BI-RADS(MRI) | < 0.0012 | ||
| V | 53 (75.7%) | 232 (97.9%) | |
| III/IV | 17 (24.3%) | 5 (2.1%) | |
| ALN maximum inflow slope of TIC | 2.67 (2.26, 3.34) | 3.04 (2.25, 3.61) | 0.1864 |
CA125: cancer antigen 12–5; ER: estrogen receptor; PR: progesterone receptor; ALN: axillary lymph node; TIC: tumor time-intensity curve
1n (%); median (IQR)
2Pearson’s Chi-squared test
3Fisher’s exact test
4Wilcoxon rank sum test