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Table 3 Results of the ring trial per sample type and laboratory

From: Development, validation and evaluation of a rapid PCR-nucleic acid lateral flow immuno-assay for the detection of Plasmodium and the differentiation between Plasmodium falciparum and Plasmodium vivax

Sample type Laboratory 1 Laboratory 2 Laboratory 3 Kappa
P. falciparum 12/13* 12/13* 10/13* 0.873
P. vivax 7/9 8/9 7/9 0.727
P. ovale 4/4 4/4 3/4 0.836^
P. malariae 4/4 4/4 4/4  
P. falciparum/P. vivax 1/1 1/1 0/1$ 0.497
Negative# 61/63 62/63 62/63 0.858
  1. > Including two P. falciparum culture samples.
  2. *One sample failed in all three laboratories.
  3. # The two water controls the laboratories added themselves are not presented in the table.
  4. $ This sample was identified as a P. falciparum mono-infection.
  5. ^ The results for P. ovale and P. malariae samples were scored as positive, non-falciparum, non-vivax and are therefore combined in the analysis.