Table 3.

Correlation of EGFR mutation with CT features.

CT features	EGFR wild-type (n = 73)	EGFR mutations (n = 75)	t/χ2	p
Maximum diameter (mm)	33.76 ± 20.85	26.83 ± 15.32	2.310	0.022
Density			10.689	0.001
Subsolid	8	25
Solid	65	50
Lesion location			3.080	0.079
Central	25	16
Peripheral	48	59
Lobulated sign			0.740	0.390
Yes	28	34
No	45	41
Spiculated margins			0.988	0.320
Yes	32	39
No	41	36

Note. Subsolid tumor contains GGO component.