Fig. 5

Decision curve analysis (DCA) of the training set and validation set. a Training set, b validation set. The y-axis measures the net benefit. The different colored lines represent the different predictive models of in-hospital death risk. The black solid line represents the assumption that all patients died in the hospital. The gray solid line represents the assumption that no patients died in the hospital. The decision curve shows that using this nomogram to predict in-hospital mortality adds more benefit than the SOFA and SAPS II scores (0.1 < Pt < 0.8)