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