Fig 4. Area Under the Receiver Operating Characteristics (ROC) curves (AUC) summarizing the discrimination ability (resolution) of the three ED triaging scores to identify ED patients at risk for five different outcomes, separately for patients with or without weakness and/or fatigue (W|F).

Panel rows show results for the five outcomes: Acute morbidity, 1-year mortality, in-hospital mortality, hospitalization, and transfer to ICU. Each panel shows the in-sample AUC values (plus a 95% confidence interval, CI) for the three scores, disease severity rating (DSR), Emergency Severity Index (ESI), and Charlson Comorbidity Index (CCI), separately for patients with W|F (in red) and for patients with other symptoms (“No W|F” in black). See Methods for details on how AUC and CI were calculated.