Table 2 .

The association between clinicopathological characteristics and mutational status of EGFR, HER2, and EML4-ALK in 349 never-smoking women with lung adenocarcinoma

Clinicopathological variables	EGFR			HER2			EML4-ALK
	Muta	Wildb	P	Mut	Wild	P	Mut	Wild	P
Age (years)
Mean	58.9	54.5		52.6	58.1		54.5	58.0
SD	9.7	11.4	<0.001	6.6	10.4	0.036	8.8	10.3	0.190
Differentiation
Poor	51	26		5	72		4	73
Moderate	138	37		7	168		8	167
Well	77	20	0.066	4	93	0.634	3	94	0.786
Stage
I	166	40		8	198		6	200
II	24	9		1	32		3	30
III	68	31		7	92		5	94
IV	8	3	0.116	0	11	0.653	1	10	0.150
Stage I
IA	99	26		5	120		5	120
IB	67	14	0.533	3	78	1.000	1	80	0.407

^aMut, mutant type.

^bWild, wild type.