TABLE 1.

Performance characteristics of the dual POC syphilis test (nontreponemal line) compared to that of the RPR test

Dual test nontreponemal line resultNo. (%) of samples tested with RPR test
ReactiveNonreactiveTotal
Reactive739 (46.2)11 (0.7)750 (46.8)
Nonreactive95a (5.9)756 (47.2)851 (53.2)
    Total834 (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%.