Table 5.

Multivariate analysis of overall survival.

Predictor	Adjusted Hazard Ratio	Standard Error	95% CI: Lower	95% CI: Higher	P-Value
Imaging Score (IS) high (2-4) vs. low (0-1)	1.710	0.179	1.204	2.428	0.003
CALGB (Halabi) Category (high vs. low/intermediate)	1.665	0.156	1.228	2.259	0.001
Life-Prolonging Therapy (yes vs. no)	0.486	0.152	0.361	0.655	<0.001