Skip to main content

Table 4 Proportion of agreements between mRDT and microscopy and qPCR (McNemar comparison, Kappa statistic and correlation)

From: Quality assurance of malaria rapid diagnostic tests used for routine patient care in rural Tanzania: microscopy versus real-time polymerase chain reaction

Tests combination

Observed agreement

Expected agreement

McNemar p-value

Kappa statistic*

Correlation

RDT- BS1 (n = 1710)

95.6%

91.2%

<0.01

0.50

0.54

RDT – BS2 (n = 1650)

95.2%

91.5%

<0.01

0.43

0.48

RDT – qPCR1 (n = 1506)

94.9%

90.7%

<0.01

0.45

0.47

BS1 - BS2 (n = 1508)

98.6%

94.5%

=0.05

0.75

0.76

  1. Kappa statistic*: p < 0.01.