Table 2. LN size of LA and SA according to various characteristics.
| Variables | MLN (n=136) | nMLN (n=2,664) | P-value | ||
|---|---|---|---|---|---|
| LN_LA | Length (mm) | 4.97±3.84 | 3.37±2.40 | <0.001 | |
| Node (mm) | <0.001 | ||||
| 0–5 | 92 (3.9) | 2,264 (96.1) | |||
| 5–10 | 34 (8.6) | 360 (91.4) | |||
| 10–15 | 5 (12.5) | 35 (87.5) | |||
| 15–20 | 3 (42.9) | 4 (57.1) | |||
| >20 | 2 (66.7) | 1 (33.3) | |||
| LN_SA | Length (mm) | 3.86±3.19 | 2.43±1.59 | <0.001 | |
| Node (mm) | <0.001 | ||||
| 0–5 | 113 (4.2) | 2,553 (95.8) | |||
| 5–10 | 17 (13.8) | 106 (86.2) | |||
| 10–15 | 3 (37.5) | 5 (62.5) | |||
| 15–20 | 3 (100.0) | 0 (0) | |||
| LN station | First-tier | 127 (94.8) | 2,066 (81.4) | <0.001 | |
| Second-tier | 7 (5.2) | 473 (18.6) | |||
| First-tier LN | LA (mm) | 4.77±3.63 | 3.22±2.26 | <0.001 | |
| SA (mm) | 3.78±3.09 | 2.34±1.46 | <0.001 | ||
| Second-tier LN | LA (mm) | 7.43±6.42 | 4.16±2.62 | <0.001 | |
| SA (mm) | 5.00±5.09 | 2.96±1.91 | 0.001 | ||
Continuous variables were described as mean±standard deviation and nominal variables were described as number (%).
LN = lymph node; LA = long-axis; SA = short-axis; MLN = metastatic lymph node; nMLN = non-metastatic lymph node.