Table 4.

Multivariate Logistic Regression for Preoperatively Predicting IMA in IPNs.

Variables	Odd Ratio (95%CI)	P-value
Shape (ref. Irregular)	0.977(0.941-1.014)	.216
Lobulation (ref. Absence)	0.992(0.955-1.032)	.701
Bubble lucency (ref. Absence)	1.062(1.018-1.108)	.006
Primary site (ref. Lower lobe)	0.952(0.892-1.016)	.136
Primary site (ref. Lower lobe)	0.931(0.899-0.964)	＜.001
CT density (ref. GGN)	0.952(0.906-1.001)	.053
CT density (ref. GGN)	0.963(0.92-1.008)	.103
Clinical T stage (ref. cT1a)	0.969(0.908-1.035)	.348
Clinical T stage (ref. cT1a)	0.937(0.874-1.006)	.072
Radscore (VOI +2mm)	1.1(1.084-1.115)	＜.001

Abbreviation: IMA, Invasive mucinous adenocarcinoma; IPN, incidental pulmonary nodules; VOI, volumes of interest.