Table 2

Area under the receiver operating characteristic analyses curves of APACHE II, SAPS II, SOFA and ATN-ISI severity score systems on in-hospital mortality prediction of critically ill patients with acute kidney injury

Scoring systemArea under the curveSEP value95% CI
LowerUpper
APACHE II0.9030.024<0.0010.8560.950
ATN-ISI0.8890.025<0.0010.8410.937
SAPS II0.8930.024<0.0010.8470.940
SOFA0.9080.021<0.0010.8660.950
  • APACHE II, Acute Physiology and Chronic Health Evaluation version II; ATN-ISI, Acute Tubular Necrosis Individual Severity Index; SAPS II, Simplified Acute Physiology Score version II; SOFA, Sepsis-related Organ Failure Assessment.