Table 3.
Multivariable analysis of different variables on OS and DFS
| Factor | OS | DFS | ||||
|---|---|---|---|---|---|---|
|
|
|
|||||
| HR | 95% CI | P | HR | 95% CI | P | |
| AJCC-TRG | 1.246 | 1.012-1.534 | 0.039 | 1.230 | 1.006-1.503 | 0.043 |
| Pathologic T stage | 1.296 | 1.008-1.543 | 0.004 | 1.199 | 1.020-1.409 | 0.028 |
| Pathologic N stage | 1.574 | 1.262-1.963 | <0.001 | 1.464 | 1.186-1.807 | <0.001 |
| Post-NACRT CEA | 1.871 | 1.200-2.917 | 0.006 | 1.932 | 1.258-2.966 | 0.003 |
Abbreviation: AJCC, American Joint Committee on Cancer; TRG, Tumor regression grade; NACRT, Neoadjuvant chemoradiotherapy; CEA, Carcinoembryonic antigen; OS, Overall survival; DFS, Disease-free survival; HR, Hazard ratio; CI, Confidence interval.