Figure 2.

SHapley Additive exPlanations (SHAP) plot for the eXtreme Gradient Boosting (XGB) model for predicting high-flow nasal cannula (HFNC) failure. The top 20 predictors of HFNC failure in the XGB model are listed in the order of importance on the vertical axis. The distribution of color-coded data points on the horizontal axis indicates whether high (purple) versus low (yellow) values of that predictor are associated with positive SHAP value (contributing to prediction of failure) versus negative SHAP value (contributing to prediction of nonfailure). ALKP = alkaline phosphatase, ALT = alanine transferase, BUN = blood urea nitrogen, CRP = C-reactive protein, HR = heart rate, MAP = mean arterial pressure, max = maximum, min = minimum, RR = respiratory rate, SBP = systolic blood pressure.