Table 5.

Multivariate analyses for DFS and OS.

		DFS			OS
		RR	95% CI	P value	RR	95% CI	P value
Karnofsky index	≥80	1	1.5–10.9	0.005	1	1.6–11.2	0.001
	<80	4.1			4.1
Stage	I/II, IIE	1	1.2–1.9	0.01	1	1.5–9.7	0.004
	IV	1.4			3.8
LDH	Normal range	1	1.05–1.63	0.02
	>240 mg	1.18
Age	≤60 years				1	1.15–1.9	0.04
	>60 years				1.4

RR: relative risk; CI: confidence interval, DFS: disease-free survival, OS: overall survival, and LDH: lactate dehydrogenase.