Table 3 Multivariable Logistic Regression of CT finding and invasiveness of ground glass nodules

maximum diameter

9.348 (5.346-16.345)

＜0.001

4.707 (2.060-10.758)

0.001

CTR

1.074 (1.062-1.086)

＜0.001

1.027 (1.011-1.043)

0.001

maximum CT value

1.095 (1.079-1.112)

＜0.001

1.025 (1.004-1.047)

0.019

mean CT value

1.122 (1.100-1.144)

＜0.001

1.035 (1.008-1.063)

0.012

spiculation sign

＜0.001

2.055 (1.148-3.679)

0.015

No

Reference

Yes

8.508 (5.634-12.847)

vascular convergence sign

＜0.001

2.508 (1.345-4.676)

0.004

No

Reference

Yes

18.820 (12.096-29.282)

Pleura traction sign

＜0.001

1.174 (0.595-2.316)

0.644

No

Reference

Yes

3.225 (2.043-5.091)

Air Bronchogram Sign

0.105

No

Reference

Yes

2.027 (0.862-4.765)

lobulation sign

＜0.001

1.615 (0.822-3.175)

0.164

No

Reference

Yes

3.713 (2.298-6.002)

Vacuole Sign

0.111

No

Reference

Yes

1.348 (0.934-1.947)