Table 4 Details of the predictive model used to calculate the probability of IAC in pGGNs measurements ≤ 2 cm

Intercept

-12.759

4.13

0

0.002

Maximum diameter

2.41

0.417

5.784

11.130 (5.044, 25.966)

< 0.001

Age

0.053

0.018

2.871

1.054 (1.018, 1.094)

0.004

Lymphocyte

-0.027

0.308

-0.089

0.973 (0.527, 1.769)

0.929

PNI

0.081

0.042

1.931

1.084 (1.002, 1.183)

0.054

Erythrocyte

0.787

0.543

1.449

2.196 (0.759, 6.471)

0.147

Hemoglobin

-0.025

0.018

-1.414

0.975 (0.941, 1.010)

0.157

SA

0.049

0.024

2.049

1.050 (1.002, 1.100)

0.04

CYFRA21-1

0.209

0.158

1.321

1.232 (0.911, 1.705)

0.186

CEA

0.094

0.112

0.84

1.099 (0.877, 1.366)

0.401

Gender

  Female

Ref.

  Male

0.768

0.47

1.633

2.154 (0.859, 5.458)

0.103

Smoking history

  Non-smoker

Ref.

  Smoker

-0.327

0.435

-0.751

0.721 (0.304, 1.685)

0.453

Blood type

  A

Ref.

  B

0.582

0.368

1.582

1.790 (0.875, 3.722)

0.114

  AB

0.857

0.49

1.749

2.356 (0.898, 6.187)

0.08

  O

-0.278

0.386

-0.72

0.757 (0.352, 1.609)

0.472

ASA

  1

Ref.

  2

-0.855

0.526

-1.625

0.425 (0.153, 1.222)

0.104

  3

0.345

1.586

0.218

1.412 (0.045, 46.131)

0.828

Location

  Centrality

Ref.

  Peripherality

-1.245

0.515

-2.418

0.288 (0.104, 0.794)

0.016

Shape

  Regularity

Ref.

  Irregularity

0.444

0.327

1.358

1.559 (0.819, 2.962)

0.174

Spiculation

  No

Ref.

  Yes

0.253

0.309

0.819

1.288 (0.699, 2.360)

0.413

Vascular penetration sign

  No

Ref.

  Yes

-0.601

0.346

-1.736

0.549 (0.275, 1.074)

0.083

Pleural adhesions

  No

Ref.

  Yes

0.935

0.308

3.034

2.548 (1.398, 4.700)

0.002

Bronchus sign

  No

Ref.

  Yes

0.979

0.373

2.625

2.662 (1.286, 5.576)

0.009

Lobulation

  No

Ref.

  Yes

0.815

0.38

2.147

2.260 (1.078, 4.799)

0.032