Fig 1.
Flowchart of the study process.
Table 1.
Baseline information of patients in the SAP and NSAP groups.
Fig 2.
Perioperative variable selection using a LASSO logistic regression model.
Table 2.
Multi-factor logistic regression analysis of the occurrence of SAP.
Fig 3.
Nomogram plot of SAP prediction model.
Fig 4.
Receiver operating characteristic curves for the SAP prediction model.
Fig 5.
Evaluation of the SAP predictive model.
(A) Calibration curve for SAP prediction model.(B) DAC of SAP prediction model. (C) Internal validation calibration curve for SAP prediction model using Bootstrap method. (D) Calibration curve for external validation of SAP prediction model.