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Table 4 Sensitivities and specificity of the SDFK40 for the detection of non-falciparum species, retrospective samples

From: Evaluation of the rapid diagnostic test SDFK40 (Pf-pLDH/pan-pLDH) for the diagnosis of malaria in a non-endemic setting

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)

  1. * Too few samples to calculate sensitivity according to parasite density