Table 2. – Performance of severity indices in predicting complications in patients in the postoperative period of CABG in the ICU.
| Neurological | AUC// | 95%CI¶ min-max | Cut-off point | Sensitivity | Specificity | PPV# | NPV** | Accuracy |
|---|---|---|---|---|---|---|---|---|
| EuroScore* | 0.66 | 0.57-0.74 | 2.59 | 73.68 | 55.05 | 16.00 | 94.74 | 56.99 |
| SOFA† | 0.65 | 0.55-0.74 | 6.50 | 57.89 | 70.34 | 18.49 | 93.50 | 69.04 |
| APACHE II‡ | 0.72 | 0.63-0.81 | 15.50 | 71.05 | 67.89 | 20.45 | 95.28 | 68.22 |
| SAPS II§ | 0.66 | 0.57-0.75 | 23.50 | 76.32 | 49.24 | 14.87 | 94.71 | 52.05 |
| Cardiovascular | AUC// | 95%CI¶ min-max | Cut-off point | Sensitivity | Specificity | PPV# | NPV** | Accuracy |
| EuroScore* | 0.65 | 0.58-0.72 | 3.50 | 52.05 | 71.58 | 31.40 | 85.66 | 67.67 |
| SOFA† | 0.63 | 0.56-0.70 | 5.50 | 72.60 | 49.32 | 26.37 | 87.80 | 53.97 |
| APACHE II‡ | 0.60 | 0.52-0.67 | 17.50 | 34.25 | 81.51 | 31.65 | 83.22 | 72.05 |
| SAPS II§ | 0.67 | 0.60-0.74 | 27.50 | 57.53 | 71.23 | 33.33 | 87.03 | 68.49 |
| Infectious | AUC// | 95%CI¶ min-max | Cut-off point | Sensitivity | Specificity | PPV# | NPV** | Accuracy |
| EuroScore* | 0.66 | 0.56-0.78 | 1.92 | 91.67 | 39.00 | 9.57 | 98.52 | 42.47 |
| SOFA† | 0.64 | 0.52-0.74 | 6.50 | 58.33 | 69.21 | 11.76 | 95.93 | 68.49 |
| APACHE II‡ | 0.58 | 0.46-0.70 | 17.50 | 41.67 | 79.77 | 12.66 | 95.10 | 77.26 |
| SAPS II§ | 0.63 | 0.53-0.74 | 25.50 | 66.67 | 58.06 | 10.06 | 96.12 | 58.63 |
| Respiratory | AUC// | 95%CI¶ min-max | Cut-off point | Sensitivity | Specificity | PPV# | NPV** | Accuracy |
| EuroScore* | 0.58 | 0.51-0.64 | 1.92 | 75.00 | 40.79 | 28.70 | 83.70 | 49.04 |
| SOFA† | 0.61 | 0.54-0.67 | 5.50 | 68.18 | 49.10 | 29.85 | 82.93 | 53.70 |
| APACHE II‡ | 0.59 | 0.52-0.66 | 14.50 | 57.95 | 60.65 | 31.87 | 81.95 | 60.00 |
| SAPS II§ | 0.65 | 0.58-0.71 | 27.50 | 53.41 | 71.48 | 37.30 | 82.85 | 67.12 |
| Renal | AUC// | 95%CI¶ min-max | Cut-off point | Sensitivity | Specificity | PPV# | NPV** | Accuracy |
| EuroScore* | 0.74 | 0.62-0.86 | 2.65 | 84.62 | 54.83 | 6.47 | 98.97 | 55.89 |
| SOFA† | 0.73 | 0.59-0.87 | 7.50 | 53.85 | 82.67 | 10.29 | 97.98 | 81.64 |
| APACHE II‡ | 0.78 | 0.63-0.93 | 17.50 | 76.92 | 80.40 | 12.66 | 98.95 | 80.27 |
| SAPS II§ | 0.64 | 0.48-0.80 | 26.50 | 69.23 | 61.65 | 6.25 | 98.19 | 61.92 |
| Hematological | AUC// | 95%CI¶ min-max | Cut-off point | Sensitivity | Specificity | PPV# | NPV** | Accuracy |
| EuroScore* | 0.57 | 0.48-0.67 | 1.52 | 71.87 | 47.37 | 92.16 | 16.36 | 69.32 |
| SOFA† | 0.57 | 0.47-0.67 | 6.50 | 44.74 | 68.81 | 14.29 | 91.46 | 66.30 |
| APACHE II‡ | 0.55 | 0.45-0.65 | 14.50 | 52.63 | 57.19 | 12.50 | 91.22 | 56.71 |
| SAPS II§ | 0.60 | 0.50-0.68 | 21.50 | 76.32 | 40.06 | 12.89 | 93.57 | 43.84 |
*EuroScore: European System for Cardiac Operative Risk Evaluation; †SOFA:- Sepsis-related Organ Failure Assessment; ‡APACHE II: Acute Physiology and Chronic Health Evaluation; §SAPS II: Simplified Acute Physiology Score; //AUC: Area under the curve; ¶CI: Confidence interval; #PPV: positive predictive value; **NPV: Negative predictive value.