Table 3.
Multivariate analysis of radiomic factors using the Cox proportional hazards regression model with the stepwise method.
| Factor | Hazard Ratio | Lower 95%CI | Upper 95%CI | p Value | Coefficient |
|---|---|---|---|---|---|
| OS | |||||
| 90 Percentile_HHH | 0.5197 | 0.3223 | 0.8381 | 0.007267 | −0.6545 |
| LargeAreaEmphasis_LHH | 1.7990 | 1.1260 | 2.8750 | 0.014120 | 0.5871 |
| Mean_HHH | 1.9730 | 1.2240 | 3.1790 | 0.005255 | 0.6795 |
| Median_HLL | 1.9840 | 1.2400 | 3.1740 | 0.004262 | 0.6852 |
| LRFS | |||||
| InverseVariance_HLL | 3.5450 | 1.64500 | 7.638 | 0.0012310 | 1.2655 |
| SmallDependenceHighGrayLevelEmphasis_HHH | 0.2133 | 0.09202 | 0.4942 | 0.0003138 | −1.5453 |
| PFS | |||||
| SmallDependenceHighGrayLevelEmphasis_HHH | 0.3715 | 0.2065 | 0.6686 | 0.0009571 | −0.9901 |
| TotalEnergy_HHL | 2.4610 | 1.3910 | 4.3550 | 0.0019840 | 0.9006 |
| JointEntropy_HLL | 0.4969 | 0.2943 | 0.8388 | 0.0088420 | −0.6994 |
OS―overall survival; LRFS―local relapse-free survival; PFS―progression-free survival.