Table 2. Univariate and multivariate analyses for overall survival by Cox regression model.
| Parameters | Univariate analysis | Multivariate analysis | ||||
| HR | 95% CI | p | HR | 95% CI | p | |
| Age | 0.985 | 0.567-1.986 | 0.218 | - | - | - |
| Sex | 1.215 | 0.774-2.261 | 0.159 | - | - | - |
| History of smoking | 1.195 | 0.672-1.876 | 0.371 | - | - | - |
| Tumor size | 1.462 | 0.786-2.331 | 0.158 | - | - | - |
| TNM stage | 3.215 | 1.364-4.776 | 0.011 | 2.986 | 1.185-4.427 | 0.019 |
| Histological grade | 3.018 | 1.482-5.019 | 0.007 | 2.775 | 1.285-4.465 | 0.022 |
| Lymph node metastasis | 3.391 | 1.421-4.886 | 0.005 | 3.016 | 1.218-4.562 | 0.014 |
| KTN1-AS1 expression | 2.896 | 1.527-4.652 | 0.014 | 2.775 | 1.282-4.219 | 0.021 |