TABLE 1.
Performance characteristics of the dual POC syphilis test (nontreponemal line) compared to that of the RPR test
| Dual test nontreponemal line result | No. (%) of samples tested with RPR test |
||
|---|---|---|---|
| Reactive | Nonreactive | Total | |
| Reactive | 739 (46.2) | 11 (0.7) | 750 (46.8) |
| Nonreactive | 95a (5.9) | 756 (47.2) | 851 (53.2) |
| Total | 834 (52.1) | 767 (47.9) | 1,601 (100.0) |
a
Of the 95 samples found nonreactive with the dual POC test, 85 had an RPR titer of 1:1. With an RPR titer of ≥1:2, the concordance with the POC test was 98.4% and the concordance with the nonreactive RPR test was 98.6%.