Table 2. Diagnostic performance of the Architect, Liaison, and Platelia assays.
| Panel results (N) | Kappa coefficient (95% CI) | Sensitivity, % (95% CI) | Specificity, % (95% CI) | |||
|---|---|---|---|---|---|---|
| Positive | Negative | |||||
| VCA IgM | ||||||
| Architect | Positive | 6 | 0 | 0.89 (0.68–1.00) | 85.7 (48.7–97.4) | 100.0 (78.5–100.0) |
| Negative | 1 | 14 | ||||
| Liaison | Positive | 5 | 0 | 0.77 (0.47–1.00) | 71.4 (35.9–91.8) | 100.0 (78.5–100.0) |
| Negative | 2 | 14 | ||||
| Platelia | Positive | 6 | 0 | 0.89 (0.68–1.00) | 85.7 (48.7–97.4) | 100.0 (78.5–100.0) |
| Negative | 1 | 14 | ||||
| VCA IgG | ||||||
| Architect | Positive | 17 | 2 | 0.62 (0.15–1.00) | 100.0 (81.6–100.0) | 50.0 (15.0–85.0) |
| Negative | 0 | 2 | ||||
| Liaison | Positive | 17 | 3 | 0.35 (−0.17–0.87) | 100.0 (81.6–100.0) | 25.0 (4.6–69.9) |
| Negative | 0 | 1 | ||||
| Platelia | Positive | 14 | 0 | 0.64 (0.29–0.99) | 82.4 (59.0–93.8) | 100.0 (51.0–100.0) |
| Negative | 3 | 4 | ||||
| EBNA IgG | ||||||
| Architect | Positive | 14 | 0 | 1.00 (1.00–1.00) | 100.0 (78.5–100.0) | 100.0 (64.6–100.0) |
| Negative | 0 | 7 | ||||
| Liaison | Positive | 13 | 0 | 0.90 (0.70–1.00) | 92.9 (68.5–98.7) | 100.0 (64.6–100.0) |
| Negative | 1 | 7 | ||||
| Platelia | Positive | 13 | 0 | 0.90 (0.70–1.00) | 92.9 (68.5–98.7) | 100.0 (64.6–100.0) |
| Negative | 1 | 7 | ||||
Abbreviations: CI, confidence interval; EBNA, Epstein-Barr virus nuclear antigen; VCA, viral capsid antigen.