Table 4 Performance of scoring systems, moderately predictive for 'ongoing infection needing relaparotomy' (AUC > 6.0; SOFA day 2 and APS day 1), in selecting patients for relaparotomy using a cut-off value based on a 90% sensitivity.
| Â | Â | Relaparotomy required | Â | |
|---|---|---|---|---|
| Â | Â | Yes | No | Â |
SOFA | Above 1.4 | 57 | 122 | PPVa = 32% |
cut-off | Below 1.4 | 7 | 19 | NPVb = 73% |
(range score 0-18) | Â | Sensitivity = 90% | Specificity = 13% | Â |
| Â | total | 64 | 141 | Â |
| Â | Â | Yes | No | Â |
APS | Above 3.1 | 62 | 124 | PPVa = 33% |
cut-off | Below 3.1 | 7 | 25 | NPVb = 78% |
(range score 0-56) | Â | Sensitivity = 89% | Specificity = 17% | Â |
| Â | total | 69 | 149 | Â |