Table 1.

Morphological findings in MIA and IAC groups.

Morphological features		MIA	IAC	p-value	Morphological features		MIA	IAC	p-value
Size (mm)	Long diameter			p = 0.00 a	Cavity	No	60	191	p = 0.49
	Short diameter			p = 0.00 a		Yes	11	45
Solid component	pGGN	39	35	p = 0.00 a	Liquid component	No	71	236	p = 1
	mGGN	32	201			Yes	0	0
Lobulation	No	9	7	p = 0.00 a	Satellite lesions	No	71	234	p = 1
	Shallow	32	49			Yes	0	2
	Deep	30	180		pleura sign	No	52	77	p = 0.00 a
Calcification	No	71	236	p = 1		Close	1	0
	Huge	0	0			Thicken	3	9
	Small	0	0			traction	9	46
Location	Intrapulmonary	50	101	p = 0.00 a		Indentation	6	104
	<5 mm from the pleura	21	134		Spinous sign	No	35	62	p = 0.00 a
	Perihilar	0	1			Yes	36	174
Shape	Sphere	4	5	p = 0.03 a	Spiculation	No	52	94	p = 0.00 a
	Oval	11	15			Short	17	136
	Irregular	56	211			Long	2	6
	Crescent	0	5		Intra-nodules component	Homogeneous	39	35	p = 0.00 a
Margin	Clear	10	59	p = 0.00 a		Round	4	10
	Dizzy	48	91			Patches	8	36
	Part-clear	13	86			Flake	14	30
Vascular sign	No	3	2	p = 0.00 a		Others	6	125
	Elapse	0	0		Bronchial sign	No	43	54	p = 0.00 a
	Close	0	0			Interrupt	8	119
	Vessel convergence sign	2	84			Dilation	7	81
Vascular sign_connected	Normal	0	3			Distortion	3	65
	Congestion	26	86			Narrow	2	47
Vascular sign_vessel cover sign	Interrupt	2	19			Normal	12	21
	Enlarged	40	103		Distal crescent emphysema	No	69	215	p = 0.12
	Distortion	9	29			Yes	2	21
	Normal	16	17		Fat component	No	71	236	p = 1
	Branches	4	64			Yes	0	0
	Stiff	4	15

^aIndicates the difference was statistically significant.