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Table 4 Performance of Paracheck Pf.® between interpreting faint test bands as malaria positive and negative

From: The correlation between malaria RDT (Paracheck pf.®) faint test bands and microscopy in the diagnosis of malaria in Malawi

Interpretation of faint test bands

Sensitivity

(number/total)

[95%CI]

Specificity

(number/total)

[95%CI]

PPV

(number/total)

[95%CI]

NPV

(number/total)

[95%CI]

Accuracy of diagnosis

(number/total)

[95%CI]

Faint test bands as malaria (+)

74.2%

(66/89)

[63.8–82.9]

77.3%

(231/299)

[72.1–81.9]

49.3%

(66/134)

[40.5–58]

90.9%

(231/254)

[86.7–94.2]

76.5%

(297/388)

[72–80.7]

Faint test bands as malaria (−)

70.8%

(63/89)

[60.2–79.9]

83.3%

(249/299)

[78.6–87.3]

55.8%

(63/113)

[46.1–65.1]

90.5%

(249/275)

[86.5–93.7]

80.4%

(312/388)

[76.1–84.2]