Table 3 Accuracy of external quality assessment results above and below a density of 2 parasites/µL
| Â | Percentage of samples correctly identifieda | P value | |
|---|---|---|---|
≤ 2 parasites/µL | > 2 parasites/µL | ||
Species | |||
 P. falciparum | 54.8 | 91.9 | < 0.01 |
 P. vivax | 86.9 | 92.5 | 0.32 |
 P. knowlesi | 69.2 | 69.1 | 0.98 |
 P. malariab | NA | 48.7 | NA |
Sample type | |||
 Dried blood spots | 50.1 | 70.9 | 0.02 |
 Lyophilized blood | 80.5 | 85.8 | 0.18 |
 Overall | 68.3 | 79.1 | 0.03 |