Table 1 Analysis for sensitivity and specificity comparing VAC-surveillance to the gold standard. Cut-off indicates the percentage setting of the lowest outliers being excluded at import. Threshold shows different tolerance threshold settings for including respiratory deterioration as significant according to VAE rules.
From: An automated retrospective VAE-surveillance tool for future quality improvement studies
Mode | Cut-off | Threshold | TP | FP | FN | TN | Total | Sensitivity | Specificity |
|---|---|---|---|---|---|---|---|---|---|
Auto | 5% | 10% | 42 | 0 | 1 | 89 | 132 | 0.98 | 1 |
Auto | 0% | 10% | 27 | 8 | 16 | 85 | 136 | 0.63 | 0.91 |
Auto | 10% | 10% | 39 | 4 | 4 | 87 | 134 | 0.91 | 0.96 |
Auto | 5% | 0% | 42 | 0 | 1 | 89 | 132 | 0.98 | 1 |
Auto | 5% | 10% | 42 | 0 | 1 | 89 | 132 | 0.98 | 1 |
Auto | 5% | 20% | 42 | 0 | 1 | 89 | 132 | 0.98 | 1 |
Manual | Visual | Visual | 32 | 4 | 10 | 86 | 132 | 0.76 | 0.96 |
