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Assessment of the degree of agreement between serum anti‐PGL1 IgM and anti‐PGL1 IgA tests, according to the Kappa index 30
| Serum anti‐PGL1 IgA | Serum anti‐PGL1 IgM | |
|---|---|---|
| Positive titers n | Negative titers n | |
| Positive titers | 25 | 2 |
| Negative titers | 12 | 15 |
Kappa index=0.48 (moderate).
