Figure 4. Comparisons of the discriminatory ability of OASIS and SOFA on ICU admission for predicting hospital mortality and ICU mortality stratified by SAPS II.

(A) AUCs for hospital mortality by OASIS and SOFA score across different SAPS II categories; (B) AUCs for ICU mortality by OASIS and SOFA score across different SAPS II categories. Abbreviations: OASIS, the Oxford Acute Severity of Illness Score; SOFA, Sepsis-related Organ Failure Assessment score; ICU, intensive care unit; SAPS II, Simplified Acute Physiology Score II; AUC, area under the ROC curve; ROC, receiver operating characteristic.