Table 3:

Multivariate analysis using Cox proportional hazard model

Variables	Overall survival			Disease-free survival
	HR	95% CI	P	HR	95% CI	P
Induction ChRT vs ChT	0.31	0.13–0.75	0.0099	0.43	0.20–0.97	0.042
Mediastinal downstaging (+) vs (−)	0.19	0.010–0.94	0.039	0.61	0.18–1.64	0.35
pCR (+) vs (−)	1	0.039–25.4	1	0.25	0.012–1.7	0.17

ChRT: chemoradiotherapy; ChT: chemotherapy; HR: hazard ratio; CI: confidence interval; pCR: pathological complete response.