Table 3.

Univariate and multivariate analyses of OS in 73 patients with LS-SCLC treated with early CCRT

Variable	Univariate analysis			Multivariate analysis
	Relative risk	95% CI	P value	Relative risk	95% CI	P value
Sex, male	1.77	0.79–4.71	0.1933	–	–
Age ≥ 70 years	2.28	1.18–4.20	0.8471	0.88	0.39–1.84	0.7511
ECOG-PS = 0	0.86	0.45–1.67	0.6398	0.83	0.42–1.64	0.5840
Clinical stage III	0.95	0.45–2.23	0.8988	0.74	0.32–1.85	0.5002
Pre-existing ILAs	2.29	0.97–4.78	0.0338	2.51	1.02–5.62	0.0460

OS, overall survival; LS-SCLC, limited-stage small-cell lung cancer; CCRT, concurrent chemoradiotherapy; CI, confidence interval; ECOG-PS, Eastern Cooperative Oncology Group performance status; ILA, interstitial lung abnormality