Table 2.
Univariate analysis for OS in 532 ESCC patients who underwent curative resection without postoperative adjuvant radiotherapy or chemotherapy
| Patients | Overall survival log-rank test | ||
|---|---|---|---|
| NO (%) | 5 year (%) | P | |
| Age (years) | 0.140 | ||
| ≤60 | 246 (%) | 46.2 | |
| >60 | 286 (%) | 52.7 | |
| Sex | 0.024 | ||
| Male | 388 (%) | 46.9 | |
| Female | 144 (%) | 57.4 | |
| Location | 0.523 | ||
| Proximal esophagus | 31 (%) | 46.3 | |
| Mid esophagus | 341 (%) | 49.3 | |
| Distal esophagus | 160 (%) | 51.2 | |
| Tumor stage | <0.001 | ||
| pT1-T2 | 320 (%) | 66.1 | |
| pT3-4 | 212 (%) | 25.0 | |
| Nodal stage | <0.001 | ||
| pN0 | 328 (%) | 65.8 | |
| PN+ | 204 (%) | 22.8 | |
| Differentiation | <0.001 | ||
| Well | 41 (%) | 90 | |
| Moderately | 271 (%) | 53.4 | |
| Poorly | 220 (%) | 37.8 | |
| Prealbumin | <0.001 | ||
| Low | 64 (%) | 31.1 | |
| Median | 201 (%) | 44.6 | |
| High | 267 (%) | 58.0 | |
| Albumin | |||
| Low | 93 (%) | 30.5 | <0.001 |
| High | 439 (%) | 53.7 | |
Abbreviations: ESCC, esophageal squamous cell carcinoma; OS, overall survival.