Fig. 1

Nomogram predicting the deterioration risk of COVID-19 patients in the training dataset. a Nomogram; b ROC curve; AUC of 0.945; c Calibration plot; d DCA. The y-axis represents the net benefit, the x-axis represents the threshold probability. The red line represents the nomogram, and gray and black lines represent the deteriorated patients and patients without deterioration, respectively. Abbreviations: COVID-19, coronavirus disease 2019; ROC, receiver operating characteristic; AUC, area under the curve; DCA, decision curve analysis