Table 3 Sensitivity, specificity and ROC area under the curve for AG, ACAG & BD.
Variable | ROC AUC | CIs | ||
|---|---|---|---|---|
Anion Gap | 0.70 | 0.64 – 0.77 | ||
ACAG | 0.72 | 0.62 – 0.82 | ||
Base Deficit | 0.79 | 0.73 – 0.85 | ||
Variable | Threshold | Sensitivity | Specificity | NPV |
Anion Gap | 10 | 63.0% | 65.4% | 90.0% |
12 | 51.9% | 80.0% | 90.0% | |
14 | 39.5% | 88.7% | 88.2% | |
16 | 27.2% | 94.0% | 87.0% | |
ACAG | 10 | 94.4% | 15.5% | 99.4% |
12 | 88.9% | 29.2% | 95.3% | |
14 | 75.0% | 53.5% | 94.2% | |
16 | 55.6% | 74.9% | 92.8% | |
Base Deficit | 2 | 81.5% | 66.8% | 94.9% |
4 | 63.0% | 80.4% | 91.8% | |
6 | 50.6% | 88.1% | 90.2% | |
8 | 40.7% | 91.6% | 88.8% |