Figure 1.

A flow diagram showing the study process. Training and test dataset generation, model training and performance evaluation. A total of 2,282 patients were recruited in the current study. The data were preprocessed and randomly divided into a training set (70%) and a test set (30%), maintaining similar proportions for the two classes proportions in each set. In the training set, k-fold cross-validation (k=5) was used. STEMI, ST-segment elevation myocardial infarction; CS, cardiogenic shock.