TABLE 3

Specificity of the HISCL anti-TP assay and Lumipulse G TP-N using samples from different patient populations

Sample and assay typeTotal samples (no.)True negative (no.)False positive (no.)Specificity (% [95% CI])
Syphilis negative
    HISCL anti-TP7047040100 (99.32–100)
    Lumipulse G TP-N7047040100 (99.32–100)
Potentially interfering
    HISCL anti-TP47a470100 (90.59–100)
    Lumipulse G TP-N47a470100 (90.59–100)
Overall
    HISCL anti-TP7517510100 (99.37–100)
    Lumipulse G TP-N7517510100 (99.37–100)
  • a One sample with a confirmed positive result was excluded from the analysis of specificity.