Table 1.

Clinico-pathological patient characteristics (n = 137).

	n	%
Gender
F	87	63.5
M	50	36.5
Age at diagnosis (yrs)
median [min-max]	68.6 [34.1–91.8]
missing	20
Smoking habit
Non-smoker	55	50.9
Current smoker	11	10.2
Former smoker	42	38.9
missing	29
Histotype
Adenocarcinoma	102	86.3
Squamous carcinoma	3	2.6
Other	13	11.1
missing	20
Stage
IIIA	5	4.3
IIIB	7	6.1
IV	103	89.6
missing	22