Figure 5.

SHAP dependence plots of EDLOS with the ICU admission (A) and QAI (quality assurance issue) (B) interaction in the older population. The higher the SHAP value of a feature, the higher its impact on the risk of IHM. Each dot represents a patient. Dots are colored by the feature value for that person and piled up vertically to show density. Particularly, for binary ICU and QAI variables (i.e., {0,1}), the red dot represents a value of 1, and the blue represents a value of 0. QAI, quality assurance issue; EDLOS, length of stay in the emergency department.