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Fig. 2 | Critical Care

Fig. 2

From: Why the C-statistic is not informative to evaluate early warning scores and what metrics to use

Fig. 2

Graphic representations of the proposed metrics and the ROC curves for all cutoff values of two sample scores (EWS). a, b, c Three proposed metrics for the two sample scores. d ROC curves which we suggest not using. Each point in the graphs corresponds to a threshold of a specific score. Points A and B are referred to in the text. AUROC area under the receiver operator characteristics, EWS early warning score, NNE number needed to evaluate, PPV positive predictive value

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