TABLE 3.
Assay | No. of patients with the following result:
|
Sensitivity (%) | Specificity (%) | PPVa (%) | |||
---|---|---|---|---|---|---|---|
True positive | True negative | False positive | False negative | ||||
IHA | 15 | 49 | 8 | 0 | 100 | 86.0 | 65.2 |
IFA | 13 | 53 | 4 | 2 | 86.6 | 93.0 | 76.5 |
Strip-test | 12 | 57 | 0 | 3 | 80.0 | 100 | 100 |
Sensitivity, specificity, and PPV were calculated as described in Materials and Methods.