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Table 3 PfLDH RDT’s sensitivity & the parasitaemia among RDT false-negatives* (n = 225)

From: Field performance of Plasmodium falciparum lactate dehydrogenase rapid diagnostic tests during a large histidine-rich protein 2 deletion survey in Ethiopia

 

pfldh PCR

 

PfLDH RDTs

Pos

Ng

Total

Sensitivity = 69%

 Pos

506

55

561

PPV = 90.2

 Ng

225*

34

259

Specificity = 38%

 Total

731

89

820

 

Parasitaemia (p/µl)

Number (%)

 < 100 (range 3–95 p/µl)

66 (29)

100–200

17 (8)

200–500

33 (15)

500–1000

29 (13)

1000–2000

28 (12)

 > 2000

52 (23)

Total

225* (100)

  1. Key: * = RDT false-negative samples
  2. Ng  negative, Pos positive
  3. A total of 225 pfldh PCR positives were not detected by PfLDH RDTs
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Malaria Journal

ISSN: 1475-2875

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