TABLE 2.
Performance of Algorithm 2 at various lipase cutoffs
| Lipase cutpoint (U/L) |
Proportion of study patients ≥ lipase cutoff among study patients with confirmed AP (meeting criteria for Algorithm 1) (%) |
Individuals without AP below lipase cutoff (meeting criteria for Algorithm 1) (%) |
Positive predictive value (PPV, %) |
Negative predictive value (NPV, %) |
|---|---|---|---|---|
| 100.0 | 93.0 | 30.4 | 71.4 | 70.0 |
| 150.0 | 90.7 | 47.8 | 76.4 | 73.3 |
| 200.0 | 88.4 | 56.5 | 79.1 | 72.2 |
| 250.0 | 86.1 | 60.9 | 80.4 | 70.0 |
| 300.0 | 83.7 | 60.9 | 80.0 | 66.7 |