Fig. 2.

LASSO model profile plots. A Coefficient profile plots showing how size of the coefficients of preoperative and intraoperative factors shrinks with increasing value of the λ penalty, with the factors and their regression coefficients selected for the model based on the optimal λ for the LASSO model. B Penalty plot for the LASSO model; color error bars indicate standard error. C The optimal λ penalty of the LASSO model with a maximum AUC of 0.850. AUC indicates area under the receiver operating characteristic curve; LASSO, least absolute shrinkage and selection operator