Fig. 1

Comparison of ROC curves of the PROLOGUE, OHCA and CAHP scores for the primary endpoint. The differences between the three scores were not statistically significant (p = 0.495). AUROC Area under the receiver operating characteristic curve; CAHP Cardiac arrest hospital prognosis; OHCA Out-of-hospital cardiac arrest score; PROLOGUE Prognostication using logistic regression model for unselected adult cardiac arrest patients in the early stages