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Table 2 Overall sensitivity, specificity, PPV and NPV of malaria diagnostic methods with PCR as gold standard

From: Are rapid diagnostic tests more accurate in diagnosis of plasmodium falciparum malaria compared to microscopy at rural health centres?

Diagnostic techniques

Sensitivity

%(number/total)

[95%CI]

Specificity

%(number/total)

[95%CI]

PPV

%(number/total)

[95%CI]

NPV

%(number/total)

[95%CI]

Axillary temperature ≥37.5°C

39.3(35/89)

[29.1-50.3]

74.9(158/211)

[68.5-80.6]

39.8(35/88)

[29.5-50.8]

74.5(158/211)

[68.1-80.2]

Health centremicroscopy

47.2(42/89)

[36.5-58.1]

93.4(197/211)

[89.1-96.3]

75.0(42/56)

[61.6-85.6]

80.7(197/244)

[75.2-85.5]

Expert microscopy

46.1(41/89)

[35.4-57.0]

97.2(205/211)

[93.9-98.9]

87.2(41/47)

[74.3-95.2]

81.0(205/253)

[75.6-85.7]

Paracheck

91.0(81/89)

[83.1-96.0]

86.3(182/211)

[80.9-90.6]

73.6(81/110)

[64.4-81.6]

95.8(182/190)

[91.9-98.2]

  1. PPV = Positive Predictive Value, NPV = Negative Predictive Value, 95%CI = 95% Confidence Interval