Table 3.

Univariate analysis: disease-free survival

Variable	HR	95% CI	P-value
Cell type
Squamous	1.09	0.64–1.87	0.75
Adenocarcinoma
Nodal status
Negative
Positive	2.32	1.33–4.06	0.003
Micromet status
Negative
Positive	1.22	0.75–1.98	0.42
Treatment
SO
CRT	0.91	0.56–1.47	0.69