Evidence map›Paper›PMID 26788725›Full record

ArticlePloS one2016

Performance of Microscopy for the Diagnosis of Malaria and Human African Trypanosomiasis by Diagnostic Laboratories in the Democratic Republic of the Congo: Results of a Nation-Wide External Quality Assessment.

Pierre Mukadi, Veerle Lejon, Barbara Barbé, Philippe Gillet, Christophe Nyembo, Albert Lukuka, Joris Likwela, Crispin Lumbala, Justin Mbaruku, Wim Vander Veken and 4 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
7.9field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 64 citations in OpenAlex.

  1. Frontiers in cellular and infection microbiology · 2025
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  9. Diagnostic Methods for Non-Falciparum Malaria.Frontiers in cellular and infection microbiology · 2021
    Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors at 6 institutions in 3 countries.

Pierre MukadiNational Institute of Biomedical Research, Kinshasa, Democratic Republic of the Congo.
Veerle LejonInstitut de Recherche pour le Développement, Montpellier, France.
Barbara BarbéDepartment of Clinical Sciences, Institute of Tropical Medicine, Antwerp, Belgium.
Philippe GilletDepartment of Clinical Sciences, Institute of Tropical Medicine, Antwerp, Belgium.
Christophe NyemboUniversity of Lubumbashi, Lubumbashi, Democratic Republic of the Congo.
Albert LukukaNational Malaria Control Program, Kinshasa, Democratic Republic of the Congo.
Joris LikwelaNational Malaria Control Program, Kinshasa, Democratic Republic of the Congo.
Crispin LumbalaNational Human African Trypanosomiasis Control Program, Kinshasa, Democratic Republic of the Congo.
Justin MbarukuNational Human African Trypanosomiasis Control Program, Kinshasa, Democratic Republic of the Congo.
Wim Vander VekenNational Human African Trypanosomiasis Control Program, Kinshasa, Democratic Republic of the Congo.
Dieudonné MumbaNational Institute of Biomedical Research, Kinshasa, Democratic Republic of the Congo.
Pascal LutumbaNational Institute of Biomedical Research, Kinshasa, Democratic Republic of the Congo.
Jean-Jacques MuyembeNational Institute of Biomedical Research, Kinshasa, Democratic Republic of the Congo.
Jan JacobsDepartment of Clinical Sciences, Institute of Tropical Medicine, Antwerp, Belgium.
Instituut voor Tropische Geneeskunde · BENational Institute of Biomedical Research · CDUniversity of Lubumbashi · CDInstitut de Recherche pour le Développement · FRKU Leuven · BEUniversity of Kinshasa · CD

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The present External Quality Assessment (EQA) assessed microscopy of blood parasites among diagnostic laboratories in the Democratic Republic of the Congo. The EQA addressed 445 participants in 10/11 provinces (October 2013-April 2014). Participants were sent a panel of five slides and asked to return a routinely stained slide which was assessed for quality of preparation and staining. Response rate was 89.9% (400/445). For slide 1 (no parasites), 30.6% participants reported malaria, mostly Plasmodium falciparum. Only 11.0% participants reported slide 2 (Plasmodium malariae) correctly, 71.0% reported "malaria" or "Plasmodium falciparum" (considered acceptable). Slide 3 contained Plasmodium falciparum (109/μl) and Trypanosoma brucei brucei trypomastigotes: they were each reported by 32.5% and 16.5% participants respectively, 6.0% reported both. Slide 4 (Trypanosoma) was recognised by 44.9% participants. Slide 5 (Plasmodium ovale) was correctly reported by 6.2% participants, another 68.8% replied "malaria" or "Plasmodium falciparum" (considered acceptable). Only 13.6% of routine slides returned were correctly prepared and stained. The proportion of correct/acceptable scores for at least 4/5 slides was higher among EQA-experienced participants compared to first time participants (40.9% versus 22.4%, p = 0.001) and higher among those being trained < 2 years ago compared to those who were not (42.9% versus 26.3%, p = 0.01). Among diagnostic laboratories in Democratic Republic of the Congo, performance of blood parasite microscopy including non-falciparum species and Trypanosoma was poor. Recent training and previous EQA participation were associated with a better performance.

Indexed as

MicroscopyPlasmodium falciparumPlasmodium ovaleQuality Assurance, Health CareTrypanosoma brucei bruceiDemocratic Republic of the CongoFemaleHumansMalaria, FalciparumMaleTrypanosomiasis, African

Identifiers

PMID26788725
PMCPMC4720473
OpenAlexW2403065484

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.