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. Author manuscript; available in PMC: 2020 Feb 1.
Published in final edited form as: Nature. 2019 Jul 31;572(7767):116–119. doi: 10.1038/s41586-019-1390-1

Figure 2 |. Model performance illustrated by Receiver Operating Characteristic (ROC) and Precision/Recall (PR) curves.

Figure 2 |

(a) ROC and (b) PR curves for the risk that AKI of any severity will occur within 48 hours. Blue dots: different model operating points (A, 20% precision; C, 33% precision; E, 50% precision; see Extended Data Table 4). Grey shading: area corresponding to operating points with greater than four false positives for each true positive. Blue shading: performance in the more clinically applicable part of the operating space. The model significantly (p-value of <1e-6 outperformed the gradient-boosted tree baseline, shown in (b) for operating point C using two-sided Mann–Whitney U test on 200 samples per model (see Methods).