Table 6.

Patient characteristics and OS (multivariate analysis)

Characteristics	Hazard ratio	95% CI	P
Age*	1.33	1.05, 1.69	.016
Baseline ECOG performance status			.019
Grade 0†
Grade 1	2.05	1.13, 3.73
Baseline SPD per investigator (cm2)‡	1.06	1.01, 1.10	.009

^*Continuous variable; hazard ratio applies to 10-year increments.

^†Reference level for the hazard ratio.

^‡Continuous variable; hazard ratio applies to 10-cm² increments.