Fig. 2
From: Prognostic models for COVID-19 needed updating to warrant transportability over time and space
Temporal and geographic validation: net benefit of COPE and NOCOS for predicting death in second-wave patients. Decision curves of patients who were admitted since September 2020 in 4 NL hospitals (panel A) and 12 NYC hospitals (panel B). Net benefit is plotted against the full range of possible decision threshold probabilities for the original prognostic models (“COPE” in red and “NOCOS” in blue) and for these models with a calibrated intercept and slope (“COPE.recal” in dashed red and “NOCOS.recal” in dashed blue)