Cox Proportional Hazards Models for Overall Survival.

<p>Abbreviations: Hazard Ratio, HR; Confidence Intervals, CI.</p><p>Statistically significant hazard ratios (p < 0.05) are shown in bold.</p><p>¹ The imaging features are dichotomized at their respective median values and age is dichotomized at 65 years</p><p>² Each imaging biomarker is analyzed independently in separate univariate models. The unadjusted HRs represent the main effects of each covariate.</p><p>³ Based on forward selection, only two imaging biomarkers are included in the model but excluded age, gender, and stage.</p><p>⁴ Only two imaging biomarkers are included in the model in addition to age, gender, and stage</p><p>Cox Proportional Hazards Models for Overall Survival.