Evidence map›Paper›PMID 41550292›Full record

ArticleJournal of tropical medicine2026

Diagnostic Accuracy of the National Library of Medicine (NLM) Screener Application in Screening for Malaria Parasites Among Blood Donors at the Korle-Bu Blood Bank, Ghana: A Cross-Sectional Study.

Samuel Bright Appiah, Samuel Osei, Nii Kpakpo Brown, Linda Eva Amoah, Ewurama Dedea Ampadu Owusu

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Journal of tropical medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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

1 citing paper in PubMed.

  1. Article
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

5 authors.

Samuel Bright AppiahDepartment of Medical Laboratory Sciences, School of Biomedical and Allied Health Sciences, College of Health Sciences, University of Ghana, Legon, Accra, Ghana, ug.edu.gh.
Samuel OseiDepartment of Biology, The University of Texas at Arlington, Arlington, Texas, USA, uta.edu.
Nii Kpakpo BrownKorle-Bu Teaching Hospital, Korle-Bu, Accra, Ghana, kbth.gov.gh.
Linda Eva AmoahNoguchi Memorial Institute of Medical Research, University of Ghana, Legon, Accra, Ghana, ug.edu.gh.
Ewurama Dedea Ampadu OwusuDepartment of Medical Laboratory Sciences, School of Biomedical and Allied Health Sciences, College of Health Sciences, University of Ghana, Legon, Accra, Ghana, ug.edu.gh.ORCID https://orcid.org/0000-0001-5186-6988

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background and Aims: Malaria is a deadly disease spread through the bite of an infected female Methods: We conducted a cross-sectional study of 300 blood donors at the KBTH in Ghana. Each donor sample was tested with PCR (reference standard), microscopy, RDT, and the NLM screener app. Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and Cohen's Results: PCR identified Conclusion: The NLM screener app demonstrated low diagnostic performance in this setting. Applied to our donor pool, it would have led to 111 unnecessary discards (false positives) and 11 missed infections (false negatives). While promising, the app requires substantial improvement and validation before consideration for clinical use in transfusion safety programs.

Indexed as

automated microscopyblood bankblood donorsmalariamobile applications

Identifiers

PMID41550292
PMCPMC12809052

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Registered trials

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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.