Table 1. Clinicopathological characteristics of patients with or without RPELN metastasis.
| RPELN metastasis (–) n = 936, n (%) |
RPELN metastasis (+) n = 171, n (%) |
p-value | |
|---|---|---|---|
| Sex | |||
| Male | 125 (13.4) | 37 (21.6) | |
| Female | 811 (86.6) | 134 (78.4) | |
| Age | |||
| Mean±SD | 48.9±12.1 | 49.0±13.8 | 0.879 |
| <45 years | 350 (37.4) | 68 (39.8) | 0.556 |
| ≥45 years | 586 (60.6) | 103 (60.2) | |
| Diameter | <0.0001 | ||
| ≤1 cm | 629 (67.2) | 69 (40.4) | |
| 1–2 cm | 242 (25.9) | 66 (38.6) | |
| >2 cm | 65 (6.9) | 36 (21.0) | |
| Multiplicity | 0.858 | ||
| Yes | 186 (19.9) | 35 (20.5) | |
| No | 750 (80.1) | 136 (79.5) | |
| Tumor location | 0.002 | ||
| Right lobe | 613 (65.6) | 133 (77.8) | |
| Non-right lobe | 323 (34.5) | 38 (22.2) | |
| Capsule invasion | 0.005 | ||
| Yes | 499 (53.3) | 111 (64.9) | |
| No | 437 (46.7) | 60 (35.1) | |
| No. of meta-CLN | <0.0001 | ||
| 0 | 398 (42.5) | 20 (11.7) | |
| 1–2 | 289 (30.9) | 42 (24.6) | |
| ≥3 | 249 (26.6) | 109 (63.7) | |
| No. of meta-LLN | <0.0001 | ||
| 0 | 798 (85.3) | 100 (58.5) | |
| 1–2 | 47 (5.0) | 19 (11.1) | |
| ≥3 | 91 (9.7) | 52 (30.4) |
RPELNs, right paraesophageal lymph nodes; SD, standard deviation; meta-CLN, metastatic central compartment lymph nodes; meta-LLN, metastatic lateral compartment lymph nodes.