Table 1. Baseline characteristics of 22 patients with non-small cell lung cancer (NSCLC).

variable	No. of patients (%)
Sex
Male	14 (64)
Female	8 (36)
Smoking status
Non-smoker	2 (9)
Smoker	20 (91)
PS score (ECOG)
0	3 (14)
1	12 (55)
2	4 (18)
3	1 (5)
Undocumented	2 (9)
Clinical stage
IIIB	5 (23)
IV	17 (77)
Histological subtype
Adenocarcinoma	6 (27)
Squamous	9 (41)
Adeno-squamous	3 (14)
Unknown	4 (18)

PS, performance status; ECOG, Eastern Cooperative Oncology Group.