Table 4.
ROC curve analyses of the variables associated with mortality
| Variables | AUC ± SD (95% CI) | Sensitivity | Specificity | P value |
|---|---|---|---|---|
| PPMVG | 0.67 ± 0.09(0.48–0.82) | 33.3% | 100% | 0.004 |
| Region I + II + III + IV | 0.64 ± 0.10(0.45–0.80) | 27.8% | 100% | 0.011 |
| Class 3 + 4 of comorbidities | 0.78 ± 0.07(0.61–0.91) | 83.3% | 73.3% | <0.001 |
| Three risk factors combineda | 0.88 ± 0.06(0.72–0.97) | 88.9% | 73.3% | <0.001 |
AUC, area under ROC curve; CI, confidence intervals; PPMVG, pneumatosis and/or portomesenteric venous gas; ROC, receiver operating characteristic; SD, Standard deviation.
a
Combined PPMVG, region I + II + III + IV and class 3 + 4 of comorbidities.