Table 2 Comparison of 2 radiomic features and Rad-score between PD-L1 positive and PD-L1 negative group
Features | Training group (n = 233) | P | Validation group (n = 101) | P | ||
|---|---|---|---|---|---|---|
PD-L1 negative (n = 125) | PD-L1 positive (n = 108) | PD-L1 negative (n = 47) | PD-L1 positive (n = 54) | |||
Rad-score | − 0.192 (− 0.922, 0.218) | 0.239 (− 0.133, 0.424) |  < 0.001 | − 0.493 (− 1.241, 0.140) | 0.254 (0.024, 0.488) |  < 0.001 |
PET feature | ||||||
 GLRLM_RP | 0.660 (0.424, 0.792) | 0.786 (0.678, 0.837) |  < 0.001 | 0.615 (0.352, 0.784) | 0.791 (0.728, 0.851) |  < 0.001 |
CT feature | ||||||
 SHAPE_Sphericity | 0.686 (0.645, 0.735) | 0.682 (0.607, 0.720) |  < 0.001 | 0.675 (0.609, 0.721) | 0.677 (0.630, 0.713) |  < 0.001 |