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| Patient sera (n = 112) | Positive on M23-mCherry | Positive on GFP-M23 |
| NMO (n = 40) | Positive: 39 | Positive: 0 |
| Sensitivity | 39/40 = 97.5% (95% CI 87%–100%) | 0/0 = 0% (95% CI 0%–9%) |
| Other diagnosis andhealthy donors (n = 72) | Positive = 0 | Positive = 0 |
| Specificity | 72/72 = 100% (95% CI 95%–100%) | 72/72 = 100% (95% CI 95% 100%) |
| Likelihood ratios | LR+: ∞; LR−: 0.025 | LR+: ∞; LR−: 1 |
