Table 6.
Backward elimination multivariable model for overall survival
| Variable | Levels | Wald χ2 | P value | HR (95% CI) |
|---|---|---|---|---|
| Diagnosis | Esophagus | 6.7 | 0.036 | 1.0 |
| Gastric | 1.84 (0.96, 3.52) | |||
| Pancreas | 1.84 (1.11, 3.05) | |||
| WHO performance status | 0,1 | 16.2 | <0.001 | 1.0 |
| 2 | 2.09 (1.26, 3.47) | |||
| 3 | 3.95 (1.85, 8.44) | |||
| AJCC stage 2010 | II, III | 3.3 | 0.071 | 1.0 |
| IV | 1.60 (0.96, 2.68) | |||
| Subsequent treatment | No | 0.01 | 0.93 | 1.0 |
| Yes | 0.97 (0.56, 1.70) | |||
| MDSC | Linear | 7.3 | 0.007 | 1.22 (1.06, 1.41)a |
N = 115 patients (82 deaths) with complete information
aIncreased hazard of death based on a unit increase in MDSC