From: Nodal skip metastasis in thoracic esophageal squamous cell carcinoma: a cohort study
Non-NSM | NSM | p-value | |
---|---|---|---|
Number | 72 | 16 | - |
Age (years)a | 63 (57–70) | 59 (54–69) | 0.64 |
Sex Male: Female | 59:13 | 12:4 | 0.50 |
Advanced liver disease | 15 (20.8) | 3 (18.8) | 0.99 |
Pulmonary disease | 14 (19.4) | 3 (18.8) | 0.99 |
Tumor location: | 0.02 | ||
Upper thoracic esophagus | 10 (13.9) | 4 (25.0) | |
Middle thoracic esophagus | 28 (38.9) | 10 (62.5) | |
Lower thoracic esophagus | 34 (47.2) | 2 (12.5) | |
Tumor differentiation: | 0.21 | ||
Well | 11 (15.3) | 5 (31.3) | |
Moderate | 47 (65.3) | 10 (62.5) | |
Poor | 14 (19.4) | 1 (6.2) | |
Tumor length (mm)a | 50 (40–70) | 50 (35–50) | 0.22 |
Preoperative clinical N stage: | 0.04 | ||
cN+ | 35 (48.6) | 3 (18.8) | |
cN0 | 37 (51.4) | 13 (81.2) | |
Pathologic T stage: | 0.99 | ||
pT1-pT2 | 17 (23.6) | 4 (25.0) | |
pT3-pT4 | 55 (76.4) | 12 (75.0) | |
Harvested lymph nodesa | 17 (12–25) | 18 (13–23) | 0.72 |
Metastatic lymph nodesa | 1 (1–3) | 2 (1–5) | 0.01 |