Table 3 Sensitivity, specificity, percentage of correctly classified patients and positive and negative likelihood ratio of basal cortisol at different cut off values
Cut-off value of basal cortisol | Sensitivity | Specificity | Correctly classified | LR+ | LR- |
|---|---|---|---|---|---|
<150 nmol/l | 100% | 50% | 74% | 2.0 | 0.0 |
<330 nmol/l | 80% | 86% | 83% | 5.6 | 0.2 |
>400 nmol/l | 56% | 96% | 77% | 15.7 | 0.5 |