Table 3.

Multivariate analyses for OS in ICIs monotherapy group and all patients

	ICI monotherapy			All patients
Factors	P‐value	Hazard ratio	95% CI	P‐value	Hazard ratio	95% CI
Pathology (squamous vs. nonsquamous NSCLC)	0.005	2.593	1.327–5.065	0.003	2.133	1.299–3.501
Bone metastasis (No vs. Yes)	0.019	0.482	0.263–0.886	—	—	—
ECOG performance status (0–1 vs. ≥2)	0.172	0.496	0.181–1.357	0.059	0.436	0.184–1.032
Treatment line (1 vs. ≥2)	—	—	—	0.038	0.555	0.319–0.967