Threshold determination
A threshold determines the score of each continuous variable in the clinical model, for example, age in CHAThe thresholds of laboratory examination indexes evaluated by SHAP analysis were inaccurate. For example, the threshold of NT-proBNP was 52.28 pg/ml, which was less than the upper limit of regular medical reference. This was clearly an incorrect outcome. Stenwig et al. also reported that the decision-making process of LR did not correspond to common medical theory: a linear relationship was detected between temperature and mortality, with higher temperatures being associated with better prognosis [