Table 3.

Univariable and multivariable Cox proportional hazard ratio of the prognostic score for progression-free survival.

Variable		No.	Event	Censored	Univariable analysis		Multivariable analysis
					HR (95% CI)	P-Value	HR (95% CI)	P-Value
Group	Poor-prognosis	104	78	26	1.23 (0.92–1.64)	0.165	0.97 (0.65–1.46)	0.879
	Intermediate-prognosis	107	72	35	0.78 (0.58–1.04)	0.090	0.81 (0.55–1.22)	0.308
	Good-prognosis	48	38	10	1		1
Age (10-year intervals)		–	–	–	0.90 (0.79–1.02)	0.086	0.92 (0.81–1.06)	0.242
ECOG PS	2	28	23	5	1.65 (1.03–2.50)	0.026	1.40 (0.85–2.19)	0.164
	0–1	231	165	66	1		1
Treatment line	Later-line	195	149	46	1.47 (1.05–2.13)	0.032	1.45 (1.02–2.09)	0.042
	First-line	64	39	25	1		1

ECOG PS, Eastern Cooperative Oncology Group performance status; HR, hazard ratio; CI, confidence interval.