Table 2.

Univariable and multivariable Cox regression analysis in SCLC patients with BMs

Characteristics	Categories	Univariable			Multivariable
		HR	95%CI	P-value	HR	95%CI	P-value
Gender	Male vs. Female	1.274	0.569–2.853	0.556
Age (years)	≥ 60 vs. <60	1.383	0.701–2.727	0.349
Number of BMs	≥ 2 vs. Single	1.192	0.623–2.278	0.596
Concurrent targeted therapy	Yes vs. No	0.410	0.223–0.755	0.004	0.486	0.256–0.924	0.028
Radiation type	WBRT + SIB vs. WBRT	0.471	0.265–0.837	0.010	0.592	0.322–1.085	0.090

SCLC small cell lung cancer, BMs brain metastases, HR hazard ratio, CI confidence interval, WBRT whole brain radiotherapy, SIB simultaneous integrated boost