Fig. 3

Comparison of Berlin and expanded EHR definitions. Panel A shows discrimination for hospital mortality by each computable ARDS definition, with blue bars indicating area under the receiver operating curve (AUROC), and error bars indicating 95% confidence interval. *P < 0.05 for Delong tests comparing to EHR-Berlin definition. Panel B shows boxplots of time (in hours) from hospital admission to meeting all ARDS criteria for each definition, among 171 patients who also met EHR-Berlin definition. Boxes indicate median (interquartile range) time, and whiskers indicate 10th and 90th percentile. EHR-Alternative 4 not plotted as it had the same imaging and oxygenation criteria as EHR-Alternative 3. *P < 0.001 for Wilcoxon signed rank tests comparing each alternative definition to EHR-Berlin definition