Table 4.
Sensitivities and specificity of the SDFK40 for the detection of non-falciparum species, retrospective samples
| Results of microscopy corrected by PCR | Number | Identified as non-falciparum species by SDFK40 | % Sensitivity (95% C.I.) | % Specificity (95% C.I.) |
| All non-falciparum species combined | 74 | 53 | 71.6 (60.0-81.5) | |
| Parasite density ≤ 500/μl | 28 | 14 | 50.0 (30.7-69.4) | |
| Parasite density > 500/μl | 46 | 39 | 84.8 (71.1-93.7) | |
| P. vivax samples, total | 30 | 26 | 86.7 (69.3-96.2) | |
| Parasite density ≤ 500/μl | 11 | 8 | 79.7 (39.0-94.0) | |
| Parasite density > 500/μl | 19 | 18 | 94.7 (74.0-99.9) | |
| P. ovale samples, total | 30 | 24 | 80.0 (61.4-92.3) | |
| Parasite density ≤ 500/μl | 11 | 6 | 54.6 (23.4-83.3) | |
| Parasite density > 500/μl | 19 | 18 | 94.7 (74.0-99.9) | |
| P. malariae samples, total* | 14 | 3 | 21.4 (4.7-50.8) | |
| P. falciparum and negative samples, total | 267 | 0 | 100.0 (97.9-100) |
* Too few samples to calculate sensitivity according to parasite density