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. 2018 Nov 28;17:439. doi: 10.1186/s12936-018-2588-7

Table 2.

Evaluation of the diagnostic performance of microscopy and RDT versus PCR

PCR Sensitivity (%) Specificity (%) PPV (%) NPV (%) Kappa’s test P value
Positive Negative
Microscopy
 Positive 113 22 83.7 52.5 44.1 87.8 0.09 0.00
 Negative 143 158
RDT
 Positive 223 77 74.3 74.5 87.1 57.2 0.18 0.00
 Negative 33 103

PPV positive predictive value, NPV negative predictive value