Table 3. Sensitivity and specificity of the ReaScan TBE IgM rapid testa (nā=ā313 samples).
| Type of patients | ReaScana result | Total | Sensitivityb (95% CI) |
Specificityc (95% CI) |
||
|---|---|---|---|---|---|---|
| TBE positive | TBE equivocal | TBE negative | ||||
| TBE patients | 171 | 1 | 0 | 172 | 99.4% (96.8ā100%) |
97.9% (93.9ā99.6%) |
| Non-TBE patients | 1 | 2 | 138 | 141 | ||
CI: confidence interval; TBE: tick-borne encephalitis.
a ReaScan TBE IgM rapid test (Reagena, Toivala, Finland).
b Equivocal results calculated as false negative.
c Equivocal results calculated as false positive.
In this table, samples were not from patients known to have vaccinations, or infections other than with TBE virus, that might cause diagnostic problems such as serological cross-reactions.