Table 5.
Univariate and multivariate regression analysis of PFS.
| Factor | Univariate | Multivariate | ||||
|---|---|---|---|---|---|---|
| HR1 | 95%CI1 | P-value | HR1 | 95%CI1 | P-value | |
| Treatment methods2 | 0.991 | 0.517, 1.901 | 0.978 | – | – | - |
| Tumor size(cm) | 1.025 | 0.903, 1.163 | 0.705 | – | – | – |
| Age | 0.967 | 0.931, 1.005 | 0.086 | 0.977 | 0.924, 1.034 | 0.420 |
| BMI | 1.078 | 0.970, 1.198 | 0.145 | 1.101 | 0.932, 1.301 | 0.259 |
| Gender | 0.969 | 0.443, 2.119 | 0.937 | – | – | – |
| Marital status | 0.565 | 0.135, 2.365 | 0.434 | – | ||
| Clinical Stages | 1.228 | 0.574, 1.254 | 0.102 | 1.400 | 0.815, 2.404 | 0.897 |
| T stage | 0.828 | 0.738, 1.594 | 0.373 | – | – | – |
| N stage | 1.296 | 0.895, 1.877 | 0.170 | 1.022 | 0.591, 1.765 | 0.939 |
| M stage | 1.706 | 0.828, 3.513 | 0.148 | 0.455 | 0.092, 2.244 | 0.901 |
| Complication | 0.839 | 0.438, 1.607 | 0.596 | – | – | – |
| Tumor location | 1.075 | 0.769, 1.504 | 0.671 | – | – | – |
| Year of diagnosis | 0.508 | 0.254, 1.018 | 0.056 | 1.042 | 0.564, 1.924 | 0.031 |
PFS, progression free survival; OS, overall survival. Complication, including hypertension, diabetes mellitus, chronic obstructive pulmonary disease, pneumonia, cerebral infarction, coronary atherosclerotic heart disease. Tumor location, are esophageal cancer segments. In the multivariate analysis, bold values indicate P < 0.2, while in the univariate analysis table, bold values indicate P < 0.05.