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Table 2 Diagnostic accuracy of the rapid antibody test for schistosomiasis compared to parasitological techniques as the reference standard

From: Field evaluation of a new antibody-based diagnostic for Schistosoma haematobium and S. mansoniat the point-of-care in northeast Zimbabwe

SmCTF-RDT result Egg-positive children (n = 53) Egg-negative children (n = 38) Sensitivity (95% CI) Specificity (95% CI) PPV (95% CI) NPV (95% CI)
Positive 53 23 100% (93.3-100) 39.5% (24.0-56.6) 69.7% (58.1-79.8) 100% (78.2-100)
Negative 0 15 - - - -
  1. Accuracy of the Schistosoma mansoni cercarial transformation fluid rapid diagnostic test (SmCTF-RDT) for diagnosis of S. mansoni and S. haematobium infections compared to standard parasitological methods (the Kato-Katz faecal smear and urine filtration respectively).
  2. CI – Confidence Interval; PPV – Positive Predictive Value; NPV – Negative Predictive Value.