Table 2. Univariate analysis and multivariate analysis for predictors of overall survival.
| Variables | Univariate Analysis | Multivariate Analysis | ||||
|---|---|---|---|---|---|---|
| HR | CI | P value | HR | CI | P value | |
| Age | 1.251 | 0.875–1.789 | 0.219 | … | … | … |
| Gender | 0.717 | 0.474–1.083 | 0.114 | … | … | … |
| Smoke | 1.241 | 0.853–1.804 | 0.259 | … | … | … |
| Alcohol Intake | 1.565 | 1.059–2.311 | 0.025* | 1.603 | 1.085–2.368 | 0.018* |
| Grade | 1.209 | 0.–1.949 | 0.425 | … | … | … |
| Tumor Location | 0.903 | 0.679–1.200 | 0.482 | … | … | … |
| Surgery | 1.035 | 0.860–1.247 | 0.713 | … | … | … |
| TNM stage | 1.577 | 1.099–2.263 | 0.013* | 1.54 | 1.071–2.214 | 0.02* |
| TACC3 | 1.548 | 1.078–2.224 | 0.018* | 1.515 | 1.053–2.180 | 0.025* |
Variables: age, > 57 vs. ≤ 57; gender, female vs. male; smoke, smoker vs. non-smoker; alcohol consumption, yes vs no; grade, grade 3 vs. grade 2 vs. grade 1; tumor location, lower thoracic vs. middle thoracic vs. upper thoracic; surgery, left transthoracic approach vs. Ivor Lewis or McKeown; stage, III vs. II;. Cox proportional hazards model; … represent “date not available”;
*
represent P < 0.05. HR, hazard ratio; CI, confidence interval.