Table 4.

Difference of EGFR mutation between the predominant subsype mixed and without other substype

	N	EGFR+	P
Lepidic
Pure	2	0
Mixed	14	11	0.083
Papillary
Pure	12	8
Mixed	46	33	0.733
Acinar
Pure	32	23
Mixed	45	31	0.778
Solid
Pure	24	2
Mixed	16	7	0.018

EGFR+, EGFR mutation.