Table 3.

Multivariate analyses of factors associated with PFS and OS

Characteristic	Category	PFS		OS
		HR (95% CI)	P	HR (95% CI)	P
ECOG performance status	0–1 vs. 2–3	0.31 (0.16–0.61)	0.001	0.34 (0.12-1.00)	0.049
Treatment lines	1–2 vs. ≥3	0.44 (0.22–0.88)	0.021	0.32 (0.12–0.89)	0.030

Abbreviation: PFS: progression-free survival; OS: overall survival; HR: hazard ratio; CI: confidence interval; ECOG: Eastern Cooperative Oncology Group