Table 2.

Four selected radiomic features and relevant coefficients in radiomics model

Radiomic features	Regression coefficient
Pleural thickening	0.044408621
Total volume of the lesion	0.424464103
Ratio of consolidation volume to whole lung volume	0.419327051
Ratio of lesion volume to whole lung volume	0.006363664

The radiomics signature was set up as Rad-score = 0.044408621 × pleural thickening + 0.424464103 × total volume of the lesion + 0.419327051 × ratio of consolidation volume to whole lung volume + 0.575642290 × ratio of lesion volume to whole lung volume + 0.006363664