Fig. 1

Receiver operating characteristic (ROC) plots for the HIVE model (A) and the HIVE-LAB model (B) in predicting appendicitis versus other causes of AAP using the validation population. The top 10 individual parameter contributions to the models are represented by SHapley Additive exPlanations (SHAP) values scaled and plotted as percentage contributions to the prediction (C, D). Parameters outside the top 10 contribute a combined total of 17.5% to the HIVE model and 32.5% to the HIVE-LAB model. HIVE, intake, medical HIstory, Vital signs, physical Examination; HIVE-LAB, intake, medical HIstory, Vital signs, physical Examination, Laboratory testing; AAP, acute abdominal pain; Temp, Temperature; MAP, Mean Arterial Pressure; MH, Medical History; PE, Physical Examination