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Sensitivity, specificity, positive predictive values, and negative predictive values of the diagnostic index
| Cutoff values | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) |
|---|---|---|---|---|
| Derivation cohort | ||||
| Cutoff =1.5 | 87.5 | 92.2 | 92.5 | 87.0 |
| Cutoff =1.0 | 91.1 | 80.4 | 83.6 | 89.1 |
| Validation cohort | ||||
| Cutoff =1.5 | 64.7 | 76.9 | 78.6 | 62.5 |
| Cutoff =1.0 | 81.3 | 84.2 | 84.2 | 81.3 |
Abbreviations: PPV, positive predictive value; NPV, negative predictive value.
