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ROC analysis of AG and SOFA
| AG | SOFA score | |
|---|---|---|
| Cut-off | 16.5 | 6.5 |
| sensitivity | 0.589 | 0.622 |
| specificity | 0.694 | 0.691 |
| positive predictive value | 0.326 | 0.335 |
| negative predictive value | 0.871 | 0.879 |
| positive likelihood ratio | 1.930 | 2.025 |
| negative likelihood ratio | 0.592 | 0.545 |
Abbreviations: AG, anion gap
