Table 5.
Performance evaluation of light microscopy and histidine-rich protein 2 rapid diagnostic test using polymerase chain reaction as a reference for the diagnosis of asymptomatic malaria among the type-2 diabetes patients
| Diagnostic test | PCR results | Total | Performances, % (95% CI) | ||||
|---|---|---|---|---|---|---|---|
| Positive | Negative | Sensitivity | Specificity | PPV | NPV | ||
| Light microscopy | |||||||
| Positive | 15 | 0 | 15 | 42.9 (26.9-59.3) | 100 | 100 | 89.6 (82.3-93.9) |
| Negative | 20 | 173 | 193 | ||||
| Rapid diagnostic test | |||||||
| Positive | 8 | 1 | 9 | 22.9 (12.1-39) | 99.4 (96.8-99.9) | 88.9 (56.5-98) | 86.4 (81-90.5) |
| Negative | 27 | 172 | 199 | ||||
P<0.05 was considered significant. PCR – Polymerase chain reaction; CI – Confidence interval; PPV – Positive predictive value; NPV – Negative predictive value