Patient 1
This is an elderly patient who was admitted to the ICU for IS. The patient died on the 28th day. The predicted probability for mortality is high at 72.4%, compared with the baseline of 53.4% (average mortality of the validation set). The features detected by the model for predicting a higher mortality in this patient include Polys, WBC, BUN, AST, and creatinine. In Patient 1, all characteristics, except creatinine, supported the occurrence of the outcome. It was predicted by the ML model that this patient would die, and it truly occurred during admission (true positive).From a physician's point of view, the ICU observation for this IS patient is reasonable, considering the higher BUN, AST, and creatinine levels in the ICU.