Table 1 Patients’ characteristics
Characteristics | IFI (%) | ENI (%) | P value |
|---|---|---|---|
Sex | |||
Male | 74 (75%) | 54 (77%) | 0.679 |
Female | 25 (25%) | 16 (23%) | |
TNM stage | |||
I-II | 49 (49%) | 33 (47%) | 0.509 |
III-IV | 50 (51%) | 37 (53) | |
Median age (year) | 62 | 58 | 0.574 |
Tumor length | |||
<5 cm | 43 (43%) | 27 (39%) | 0.416 |
5-10 cm | 47 (47%) | 36 (51%) | |
>10 cm | 9 (10%) | 7 (10%) | |
Tumor location | |||
cervical esophagus | 9 (10%) | 9 (13%) | 0.480 |
upper thoracic | 90 (90%) | 61 (87%) | |
Nodal status | |||
N0 | 42 (42%) | 22 (32%) | |
Local nodes | 40 (40%) | 31 (44%) | |
Distal nodes | 17 (18%) | 17 (24%) | 0.288 |