Fig. 4From: A prediction model for hospital mortality in patients with severe community-acquired pneumonia and chronic obstructive pulmonary disease A The ROC curve of nomogram for training cohort. B The ROC curve for testing cohort. C The time-dependent AUC in training cohort (days). D The time-dependent AUC in testing cohort (days). ROC receiver-operating characteristic; AUC area under ROC curveBack to article page