Table 3 Diagnostic accuracy of PfHRP2 based rapid diagnostic test performed by study nurses at health facilities (HF-PfHRP2) and PfHRP2 based rapid diagnostic test performed at the central microbiology laboratory (Lab PfHRP2) by trained technicians compared using expert microscopy as gold standard
Diagnostic performance characteristic | HF-PfHRP2 | Lab-PfHRP2 | ||
|---|---|---|---|---|
% (n/N) | 95% CI | % (n/N) | 95% CI | |
Sensitivity | 97.5 (238/244) | 94.7–99.1 | 98.4 (240/244) | 95.9–99.6 |
Specificity | 52.8 (86/163) | 44.8–60.6 | 74.2 (121/163) | 66.8–80.8 |
Positive predictive value | 75.6 (238/315) | 72.4–78.5 | 85.1 (240/282) | 81.5–88.1 |
Negative predictive value | 93.5 (86/92) | 86.5–97.0 | 96.8 (121/125) | 91.9–98.8 |