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Table 4 Sensitivity of nPCR-saliva with respect to parasitaemia in the diagnosis of malaria

From: Detection of Plasmodium falciparum DNA in saliva samples stored at room temperature: potential for a non-invasive saliva-based diagnostic test for malaria

Parasitaemia/µl n Test characteristics
TP FN Sensitivity (%)a Sensitivity (%)b
Submicroscopic 31 20 11 n/a 65
< 1000 7 6 1 86 86
1000–10,000 13 11 2 85 85
> 10,000–< 50,000 11 11 0 100 100
50,000–< 100,000 9 9 0 100 100
> 100,000 7 7 0 100 100
  1. TP true positive; FN false-negative
  2. aSensitivity of nPCR-saliva with TFM as reference standard
  3. bSensitivity of nPCR-saliva with nPCR-blood as reference standard