Table 4.

Tumor response of first-line EGFR-TKI or chemotherapy in patients.

		Tumor Response						Total No.
		Partial Response		Stable Disease		Progressive Disease
Group	Treatment	No.	%	No.	%	No.	%
A	EGFR-TKI	13	72.2	5	27.8	0	0.0	18
B	EGFR-TKI	3	50.0	3	50.0	0	0.0	6
C	EGFR-TKI	3	30.0	6	60.0	1	10.0	10
D	Chemotherapy	3	27.3	7	63.6	1	9.1	11
Total		22	48.9	21	46.7	2	4.4	45