Fig. 4
SHAP decision plot of the XGBoost model. (A and B) Individual predictions of two patients. In the graph, the gray vertical line indicates the baseline prediction of the model, while the colored prediction lines represent the impact of each feature of the sample on the final prediction. The movement of the colored prediction lines demonstrates how individual feature values move the output prediction above or below the average prediction, thereby identifying the magnitude and direction of the influence of feature values on the prediction results. The feature values are provided alongside the prediction lines for reference. PTQ: perioperative transfusion quantity; CEA: carcinoembryonic antigen; CA199: carbohydrate antigen 19–9; CA125: carbohydrate antigen 125; MCV: mean corpuscular volume; LDH: lactate dehydrogenase; P: serum phosphorus; Na: serum sodium; AFU: α-L-fucosidase; bas percentage: basophil granulocyte percentage; PDW: platelet distribution width; PT: prothrombin time; APTT: activated partial thromboplastin time.
