Table 1. Descriptions of demographic, clinical and pathological characteristics for the 260 patients included in this study.
| Characteristic | Total (n=260) | |
|---|---|---|
| n | % | |
| Age (year) | ||
| Median (P25, P75) | 61 (52, 67) | |
| Sex | ||
| Male | 201 | 77.3 |
| Female | 59 | 22.7 |
| Tumor location | ||
| CE/UTE | 28 | 10.8 |
| MTE | 173 | 66.5 |
| LTE | 59 | 22.7 |
| Tumor length (cm) | ||
| Median (P25, P75) | 4.0 (3.0, 4.5) | |
| Primary tumor (pT) | ||
| pT1 | 30 | 11.5 |
| pT2 | 44 | 16.9 |
| pT3 | 164 | 63.1 |
| pT4 | 22 | 8.5 |
| Regional lymph nodes (pN) | ||
| pN0 | 119 | 45.8 |
| pN1 | 67 | 25.1 |
| pN2 | 54 | 20.8 |
| pN3 | 20 | 7.7 |
| Distant metastasis (M) | ||
| M0 | 260 | 100 |
| M1 | 0 | 0 |
| Histologicgrade (pG) | ||
| pG1 | 79 | 30.4 |
| pG2 | 148 | 56.9 |
| pG3 | 18 | 6.9 |
| Tumor stage (pTNM) | ||
| 0 | 3 | 1.2 |
| IA | 7 | 2.7 |
| IB | 28 | 10.8 |
| IIA | 37 | 14.2 |
| IIB | 52 | 20.0 |
| IIIA | 61 | 23.5 |
| IIIB | 37 | 14.2 |
| IIIC | 35 | 13.5 |
| LVI | ||
| Yes | 71 | 27.3 |
| No | 189 | 72.7 |
| PNI | ||
| Yes | 62 | 23.8 |
| No | 198 | 76.2 |
| Type of lymphadenectomy | ||
| 3-FLND | 153 | 58.8 |
| 2-FLND | 107 | 41.2 |
| Residual tumor (R) | ||
| Rx | 5 | 1.9 |
| R0 | 251 | 96.5 |
| R1 | 4 | 1.5 |
| Anastomotic leak | ||
| Yes | 52 | 20.0 |
| No | 191 | 73.5 |
| Postoperative infection* | ||
| Yes | 124 | 47.7 |
| No | 119 | 45.8 |
| Chemotherapy | ||
| Yes | 74 | 28.5 |
| No | 186 | 71.5 |
| Radiotherapy | ||
| Yes | 59 | 22.7 |
| No | 201 | 77.3 |
| Harvested lymph nodes (HLNs) | ||
| Median (P25, P75) | 35 (25, 46) | |
| Positive lymph nodes (PLNs) | ||
| Median (P25, P75) | 1 (0, 3) | |
CE, cervical esophagus; UTE, upper thoracic esophagus; MTE, middle thoracic esophagus; LTE, lower thoracic esophagus; LVI, lymphovascular invasion; PNI, perineural invasion; 3-FLND, three-field lymph node dissection; 2-FLND, two-field lymph node dissection.