Characteristics of LCCM features in the training cohort
| Predictors | Coefficient (95% CI) | P value |
| Years since quit smoking | −0.178 (−0.349 to −0.007) | 0.041 |
| Number of vessels | 0.238 (0.074 to 0.510) | 0.009 |
| Number of nodules | −0.203 (−0.325 to −0.081) | 0.001 |
| Model intercept | 1.053 |
The numbers in lung cancer and benign nodules correspond to the average values and SD of the corresponding features in the two classes. Coefficients were estimated using multiple logistic regression.
LCCM, Lung Cancer Causal Model.