Table 5.
Test characteristics of the FK80 for the detection of P. vivax according to parasite densities (n = 416)
| Species | Numbers | Correctly identified by SDFK80* |
Sensitivity in % (95% CI) |
Specificity in % (95% CI) |
| All P. vivax samples | 99 | 75 | 75.8 (65.9-83.6) | |
| Parasite density 0-500/μl | 31 | 16 | 51.6 (33.4-62.4) | |
| Parasite density 501-1,000/μl | 9 | 9 | 100 (62.9-100) | |
| Parasite density >1,000/μl | 59 | 50 | 84.7 (72.5-92.4) | |
| Parasite density >500/μl | 68 | 59 | 86.8 (75.4-93.4) | |
| Non-vivax or no parasites seen | 317 | 0 | 100 (98.5-100) |
*Unique Pv-pLDH line visible