Table 2.
Cox regression analysis for PLK1 expression on OS and PFS of LUAD patients.
| Parameter | Univariate cox analysis | Multivariate cox analysis | ||||
|---|---|---|---|---|---|---|
| HR | 95% CI | p Value | HR | 95% CI | p Value | |
| TCGA (OS) | ||||||
| Gender | 1.035 | 0.717~1.495 | 0.852 | 0.927 | 0.638~1.347 | 0.691 |
| Stage | 1.654 | 1.401~1.951 | <0.001 | 2.037 | 1.275~3.254 | 0.003 |
| T classification | 1.632 | 1.315~2.024 | <0.001 | 1.189 | 0.940~1.503 | 0.149 |
| M classification | 1.757 | 0.964~3.203 | 0.066 | 0.353 | 0.103~1.210 | 0.098 |
| N classification | 1.790 | 1.459~2.196 | <0.001 | 0.970 | 0.651~1.444 | 0.881 |
| Age | 1.002 | 0.983~1.021 | 0.843 | 1.013 | 0.993~1.033 | 0.192 |
| PLK1 | 1.046 | 1.020~1.073 | 0.001 | 1.053 | 1.023~1.084 | 0.001 |
| TCGA (PFS) | ||||||
| Age | 1.005 | 0.986~1.024 | 0.615 | 1.016 | 0.996~1.036 | 0.120 |
| Gender | 1.131 | 0.784~1.630 | 0.511 | 0.981 | 0.675~1.425 | 0.919 |
| Stage | 1.672 | 1.411~1.981 | <0.001 | 1.575 | 1.031~2.405 | 0.036 |
| T classification | 1.573 | 1.285~1.926 | <0.001 | 1.208 | 0.957~1.525 | 0.112 |
| M classification | 2.146 | 1.173~3.927 | 0.013 | 0.707 | 0.241~2.074 | 0.527 |
| N classification | 1.737 | 1.415~2.132 | <0.001 | 1.130 | 0.789~1.619 | 0.505 |
| PLK1 | 1.052 | 1.026~1.079 | <0.001 | 1.057 | 1.028~1.086 | <0.001 |
| GSE31210 (OS) | ||||||
| Age | 1.025 | 0.977-1.075 | 0.306 | 1.035388 | 0.985-1.088 | 0.169 |
| Gender | 1.519 | 0.780-2.955 | 0.219 | 1.100991 | 0.547-2.215 | 0.787 |
| Stage | 4.232 | 2.175-8.236 | <0.001 | 3.720136 | 1.886-7.337 | <0.001 |
| PLK1 | 1.658 | 1.192-2.306 | 0.003 | 1.538064 | 1.068-2.215 | 0.021 |
Abbreviations: LUAD: lung adenocarcinoma; HR: hazard ratio; CI: confidence interval; OS: overall survival; PFS: progression-free survival.