Table 2.
The performance of a trigger screening for detection of VAP and CLABSI
| 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 |
|
|
|
|
| |
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 | ||||
PPV, positive predictive value; NPV, negative predictive value.