Table 4.

Univariate analysis: overall survival

Variable	HR	95% CI	P-value
Cell type
Squamous	1.12	0.65–1.93	0.68
Adenocarcinoma
Nodal status
Negative
Positive	2.30	1.31–4.02	0.004
Micromet status
Negative
Positive	1.24	0.76–2.01	0.39
Treatment
SO
CRT	0.94	0.58–1.52	0.80