Table 2 Evaluation of WHT device on WHO55 test with respect to WHO grading scheme
From: Performance of a malaria microscopy image analysis slide reading device
Accreditation Level | Detection of parasitaemia | Species Identification | Parasite Quantitation |
|---|---|---|---|
Based on lowest grade achieved | 40 slides | 20 Slides | (within 25% of true count) 15 Slides |
Level 1 (Expert) | 90% | 90% | 50% |
Level 2 | 80% - <90% | 80% - <90% | 40% - <50% |
Level 3 | 70% - <80% | 70% - <80% | 30% - <40% |
Level 4 | <70% | <70% | <30% |
WHT analyser 95% Confidence Interval | 75% CI 59 to 87 | 45% CI 23 to 68 | 7% CI 0 to 32 |