Fig. 2

ROC curves of CRP concentrations at ICU discharge alone, CRP group combined with other covariates (model 1) and this model without CRP group (model 2), to discriminate between good outcome and adverse outcome after ICU discharge. CRP value at ICU discharge: area under the ROC curve: 0.58, 95 % CI 0.54–0.63; p = 0.002. Model 1: area under the ROC curve: 0.66, 95 % CI 0.61–0.71; p < 0.001. Model 2: area under the ROC curve: 0.65, 95 % CI 0.60–0.70; p < 0.001. ROC receiver operating characteristics, CRP C-reactive protein, ICU intensive care unit; adverse outcome: ICU readmission and/or in-hospital mortality, SOFA Sequential Organ Failure Assessment, CI confidence interval