Table 1. The baseline characteristics of the first 100 patients who underwent robot-assisted minimally invasive esophagectomy.
| Variables | N=100 |
|---|---|
| Age (year old) | 61.89±7.71 |
| Gender | |
| Male | 84 (84%) |
| Female | 16 (16%) |
| BMI (kg/m2) | 23.10±3.61 |
| Diabetes | 5 (5%) |
| Hypertension | 26 (26%) |
| Tumor location | |
| Upper thorax | 13 (13%) |
| Middle thorax | 50 (50%) |
| Lower thorax | 37 (37%) |
| Histology | |
| Squamous cell carcinoma | 88 |
| Adenocarcinoma | 6 |
| Other | 6 |
| Pathologic T stage | |
| Tis | 1 |
| T1 | 20 |
| T2 | 24 |
| T3 | 49 |
| T4a | 6 |
| Pathologic N stage | |
| N0 | 52 |
| N1 | 26 |
| N2 | 15 |
| N3 | 7 |
| TNM stage | |
| 0 | 1 |
| I | 14 |
| II | 42 |
| III | 34 |
| IVa | 9 |
| Surgical approach | |
| McKeown | 69 |
| Ivor Lewis | 31 |
| Number of RCLN-LN | 2.19 ±2.31 |
| Number of Thoracic LN | 9.97±4.78 |
| Number of Abdomen LN | 10.66±6.87 |
| Number of Total LN | 20.63±8.30 |
BMI, body mass index; LN, lymph node; RLN-LN, recurrent laryngeal nerve lymph node.