TABLE 2.
Percentages of agreement (kappa) for assays detecting IgA antibodies against VCA in seruma
| Assay | % of agreement (kappa) with assay: |
|||||
|---|---|---|---|---|---|---|
| A1 | A2.1 | A2.2 | A3 | A4 | A5 | |
| A1b | 100 | 52 (N/A) | 47 (N/A) | 12 (N/A) | 95 (N/A) | 97 (N/A) |
| A2.1 | 100 | 95 (0.9) | 61 (0.2) | 50 (–0.03) | 52 (0.002) | |
| A2.2 | 100 | 65 (0.3) | 48 (0.02) | 50 (0.05) | ||
| A3 | 100 | 17 (0.01) | 15 (0.009) | |||
| A4 | 100 | 98 (0.8) | ||||
| A5 | 100 | |||||
a
VCA, Epstein-Barr virus capsid antigen.
b
All samples were defined as positive by assay A1. No kappa value could be estimated, so results are presented as not available (N/A).