Skip to main content
. 2020 Oct 19;10:563700. doi: 10.3389/fonc.2020.563700

Table 3.

Results of multivariate analysis for overall survival by Cox regression model.

Variable RR 95%CI P
Age (≥70years vs <70years) 1.581 1.137–2.199 0.006
KPS1 (≥90/70–80/<70) 1.845 1.565–2.175 <0.001
Extracranial metastases (Yes vs No) 1.519 1.229–1.879 <0.001
LNS (N positive vs N negative) 1.702 1.340–2.162 <0.001
Treatment modality (TKIs2 vs Conventional therapy3) 0.374 0.297–0.472 <0.001

1KPS, Karnofsky performance status; 2TKIs therapy: first generation of tyrosine kinase inhibitors (TKIs), gefitinib and erlotinib; 3Conventional therapy, symptomatic or systemic treatment.