Table 1.

Patient characteristics

Variable	Value
Total No. patients enrolled	83
Median age	65	y (36-86)
Sex (male/female)	35	(42%)/48 (58%)
Histological classification
Adenocarcinoma	77	(92.8%)
Squamous cellcarcinoma	2	(2.4%)
Large-cell carcinoma	4	(4.8%)
TNM classification
IA	2	(2.4%)
IB	1	(1.2%)
IIIA	2	(2.4%)
IIIB	15	(18%)
IV	43	(52%)
post-ope	20	(24%)