Table 2 The performance of a trigger screening for detection of VAP and CLABSI
| Â | Group 2 (gold standard) | Sensitivity, % (95% CI) | Specificity, % (95% CI) | PPV, % (95% CI) | NPV, % (95% CI) | ||
|---|---|---|---|---|---|---|---|
Group 1 (trigger-based) | VAP | No VAP | Total VAP | 12/13 | 409/409 | 12/12 | 409/410 |
VAP | 12 | 0 | 12 | 92.3% | 100.0% | 100.0% | 99.8% |
No VAP | 1 | 409 | 410 | (63.90 to 98.72) | (99.09 to 100.00) | (73.35 to 100.00) | (98.64 to 99.96) |
Total VAP | 13 | 409 | 422 | Â | Â | Â | Â |
| Â | CLABSI | No CLABSI | Total CLABSI | 22/24 | 529/529 | 22/22 | 529/531 |
CLABSI | 22 | 0 | 22 | 91.7% | 100.0% | 100.0% | 99.6% |
No CLABSI | 2 | 529 | 531 | (72.96 to 98.73) | (99.30 to 100.00) | (84.43 to 100.00) | (98.64 to 99.94) |
Total CLABSI | 24 | 529 | 553 | Â | Â | Â | Â |