Table 5.

Multivariate Cox Regression Analysis for OS

Variable Name	Hazard Ratio	Confidence Interval	p Value
Age	1.01	0.96–1.07	0.644
Sex (female vs. male)	1.81	0.81–4.04	0.142
Albumin	0.98	0.91–1.05	0.558
NLR	1.04	0.98–1.10	0.177
LDH	1.17	1.02–1.33	0.024
Cycles of EP	0.50	0.30–0.84	0.008

EP, etoposide platinum (carboplatin) chemotherapy; LDH, lactate dehydrogenase; NLR, neutrophil-to-lymphocyte ratio; OS, overall survival.