Table 5 –
Comparison of performance of published IOPTH criteria for secondary and tertiary hyperparathyroidism in prediction for eucalcemia ≥6 mo postoperatively.
| IOPTH criteria | Sensitivity (95% CI) | Specificity (95% CI) | PPV (95% CI) | NPV (95% CI) | Accuracy (95% CI) |
|---|---|---|---|---|---|
| >50% decrease | 89% (0.752-0.971) | 0% (0-0.975) | 97% (0.968-0.974) | 0% | 87% (0.726-0.957) |
| >50% decrease and into normal range | 66% (0.520-0.830) | 0% (0-0.975) | 96% (0.952-0.969) | 0% | 64% (0.472-0.788) |
| <200 pg/mL | 92% (0.786-0.983) | 0% (0-0.975) | 97% (0.970-0.975) | 0% | 90% (0.758-0.971) |
| <60 pg/mL | 68% (0.514-0.825) | 0% (0-0.975) | 96% (0.954-0.970) | 0% | 67% (0.498-0.809) |