Table 3.
Sensitivity (95% CI) | Specificity (95% CI) | PPV (95% CI) | NPV (95% CI) | |
---|---|---|---|---|
Syphilis (%) | 100.0 (79.1 - 100.0) | 100.0 (97.7 - 100.0) | 100.0 (79.1 - 100.0) | 100.0 (97.7 - 100.0) |
HIV* (%) | 100.0 (75.9 - 100.0) | 99.5 (96.9 - 99.9) | 94.1 (69.2 - 99.7) | 100.0 (97.7 - 100.0) |
TPHA – Treponema pallidum hemagglutination assay; HIV algorithm - Determine, Statpak and UniGold tests run serially; Duo kit – SD BIOLINE HIV/syphilis duo kit.
*HIV-syphilis results were obtained from TPHA and HIV algorithm results.