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Diagnostic sensitivities and specificities for plasma free and deconjugated normetanephrine (NMN) and metanephrine (MN) measured alone and in combination.
| Upper reference limits | Sensitivities | Specificities |
|---|---|---|
| Deconjugated NMN | 85% (169/198) | 93% (493/528) |
| Free NMN | 95% (188/198) | 95% (503/528) |
| Deconjugated MN | 51% (100/198) | 94% (496/528) |
| Free MN | 54% (107/198) | 98% (516/528) |
| Deconjugated (NMN+MN) | 92% (179/198) | 89% (472/528) |
| Free (NMN+MN) | 97% (193/198) | 93% (493/528) |
