Table 5.

Long term survival (first period): Multivariable analysis.

Features	RR	IC	p
Pathological type
Carcinoid	Ref
Adenocarcinoma	1.75	1.09–2.81	0.32
Epidermoid carcinoma	3.06	1.18–7.92
others	5.36	1.29–22.30
Age
22–70	Ref
>70	2.50	1.31–4.78	0.0066
Pathological stage
I	Ref
II	2.28	1.56–3.32
III	5.18	2.43–11.06	0.00015