Figure 2. Comparisons of the areas under the receiver operating characteristic curves (AUROCC) for the prediction of mortality of the initial sequential organ failure assessment (SOFA) score and the Mexican sequential organ failure assessment (MEXSOFA). There was no difference between the initial SOFA [AUROCC = 0.69 (95%CI = 0.62-0.74)] and the initial MEXSOFA [AUROCC = 0.73 (95%CI = 0.66-0.78)] scores.