Evidence map›Paper›PMID 31485189›Full record

ArticleTropical medicine and health2019

A validation study of microscopy versus quantitative PCR for measuring

Emma Ballard, Claire Y T Wang, Tran Tinh Hien, Nguyen Thanh Tong, Louise Marquart, Zuleima Pava, Joel Tarning, Peter O'Rourke, James S McCarthy

Abstract read
In one paragraph

Article in Tropical medicine and health, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing 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

9 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. Remoscope: a label-free imaging cytometer for malaria diagnostics.Transactions of the Royal Society of Tropical Medicine and Hygiene · 2025
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. 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

9 authors.

Emma Ballard1QIMR Berghofer Medical Research Institute, Brisbane, Australia.
Claire Y T WangQueensland Paediatric Infectious Diseases Laboratory, Centre for Children's Health Research, Brisbane, Australia.
Tran Tinh Hien3Oxford University Clinical Research Unit-Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam.
Nguyen Thanh Tong3Oxford University Clinical Research Unit-Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam.
Louise Marquart1QIMR Berghofer Medical Research Institute, Brisbane, Australia.
Zuleima Pava1QIMR Berghofer Medical Research Institute, Brisbane, Australia.
Joel Tarning4Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.
Peter O'Rourke1QIMR Berghofer Medical Research Institute, Brisbane, Australia.
James S McCarthy1QIMR Berghofer Medical Research Institute, Brisbane, Australia.ORCID 0000-0001-6596-9718

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Microscopy and 18S qPCR are the most common and field-friendly methods for quantifying malaria parasite density, and it is important that these methods can be interpreted as giving equivalent results. We compared results of quantitative measurement of

Indexed as

MicroscopyPlasmodium falciparumqPCRValidation

Identifiers

PMID31485189
PMCPMC6712708

What OpenQuestion holds

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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.