Table 1.

Patient and disease characteristics

Variables		Number	%
Sex	Female	46	79.3
	Male	12	20.7
Age	Median(range)	62	(35-84)
Race	White	49	84.5
	Asian	7	12.1
	Black	2	3.4
Smoking Status¶	Never	29	50.0
	Former	28	48.3
	Current	1	1.7
Path	Adenocarcinoma	53	91.4
	NSCLC NOS*	5	8.6
	0	21	36.2
ECOG	1	35	60.3
Performance Status	2	2	3.4
Stage	I	5	8.6
	II	0	0
	III	0	0
	IV	53	91.4
TKI	Erlotinib	53	91.4
	Gefitinib	5	8.6
	exon19 del	35	60.3
	exon19del &
EGFR mutations	L861Q	1	1.7
	L858R	16	27.6
	L861Q	1	1.7
	L861Q & G719	1	1.7
	G719	4	6.9

^¶Never:<100 lifetime cigarettes; Former:quit ≥ 1 year prior to start of therapy; Current:smoked ≤1 year prior to start of therapy

^*NSCLC NOS, Non-small-cell lung cancer not otherwise specified

^≫Extrathoracic metastasis at diagnosis of advanced disease