Table 4. Multivariate Cox Regression Analysis for Patients With Esophageal Cancer .
| Characteristics | β | HR (95% CI) | P value |
|---|---|---|---|
| Age | - | overall | < 0.001 |
| 45 > | reference | 1 | reference |
| 46 - 65 | 1.23 | 3.43 (1.03-11.41) | 0.044 |
| < 65 | 2.28 | 9.78 (2.93-32.64) | < 0.001 |
| Histology grade | - | overall | 0.085 |
| Poor | reference | 1 | reference |
| Moderate | -0.64 | 0.52 (0.25-1.07) | 0.078 |
| Well | -0.02 | 0.98 (0.51-1.85) | 0.951 |
| Location of tumor | - | overall | 0.009 |
| Lower | reference | 1 | reference |
| Middle | -0.91 | 0.40 (0.22-0.73) | 0.003 |
| Upper | -0.13 | 0.53 (0.33-0.85) | 0.009 |