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Sensitivity, specificity, PPV, NPV, PLR and NLR of serum amylase, serum lipase, UTDT and APACHE II scoring systems in AP
| Sensitivity | Specificity | PPV | NPV | PLR | NLR | |
| % | % | % | % | |||
| On admission | ||||||
| Serum amylase (> 100 U/L) | 78.0 | 87.3 | 94.8 | 61.5 | 6.1 | 0.3 |
| Serum lipase (> 60 U/L) | 86.2 | 89.4 | 96.6 | 76.0 | 8.1 | 0.2 |
| UTDT, positive | 91.0 | 72.0 | 96.6 | 70.4 | 3.4 | 0.1 |
| APACHE II > 8 | 56.0 | 89.4 | 61.0 | 84.2 | 5.3 | 0.5 |
