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. 2013 Jan 2;5(1):e2013009. doi: 10.4084/MJHID.2013.009

Table 4.

Statistical analysis of haematological parameters for diagnosis of Plasmodium vivax (PV) and Plasmodium falciparum (PF) malarial infection.

Parameters Sensitivity (%) Specificity (%) PPV NPV LR 95%CI
TLC<4×109/L
PV 14.6 90 77.3 31.1 1.45 0.75–2.8
PF 4.3 90 28.6 50.6 0.43 0.14–1.33
PC<150×109/L
PV 88 65 85.4 69.9 2.51 1.91–3.29
PF 84.8 65 69 82.3 2.42 1.82–3.20
PDW 6–10
PV 69.5 33 70.7 31.7 1.03 0.88–1.22
PF 82.6 33 53.1 67.3 1.23 1.04–1.45
MPV>8fl
PV 70.8 41 70.8 41 1.2 0.99–1.44
PF 50.4 41 50.4 41 1.10 0.88–1.22

PPV, Positive Predictive Value; NPV, Negative Predictive Value; LR, Likelihood Ratio; CI, Confidence Interval; TLC, Total Leukocyte Count; PC, Platelet Count; MPV, Mean Platelet Volume; PDW, Platelet Distribution Width