Table 1.

Baseline demographic and clinical characteristics.

Characteristics	No. of patients (%)
Sex
Male	36 (45.6%)
Female	43(54.4%)
Age
Median	59 (30-75)
<60	43 (54.4%)
≧60	36 (45.6%)
Smoking status
Never-smoker	54 (68.4%)
Current/ever-smoker	25(31.6%)
ECOG PS
PS 0-1	72 (91.1%)
PS 2	7 (8.9%)
EGFR mutation in tissue
Mutation+	51 (64.6%)
Wild-type	28 (35.4%)
Histology
adenocarcinoma	77 (97.5%)
adenosquamous	2 (2.5%)