Figure 3. The ROC curve for the model's screening performance on the test dataset using every single lead (I, II, V1-V6). (A) The ROC curve for I lead. (B) The ROC curve for II lead. (C) The ROC curve for V1 lead. (D) The ROC curve for V2 lead. (E) The ROC curve for V3 lead. (F) The ROC curve for V4 lead. (G) The ROC curve for V5 lead. (H) The ROC curve for V6 lead.