Evidence map›Paper›PMID 27325802›Full record

ArticleThe American journal of tropical medicine and hygiene2016

Estimation of Plasmodium falciparum Transmission Intensity in Lilongwe, Malawi, by Microscopy, Rapid Diagnostic Testing, and Nucleic Acid Detection.

Jonathan B Parr, Connor Belson, Jaymin C Patel, Irving F Hoffman, Portia Kamthunzi, Francis Martinson, Gerald Tegha, Isaac Thengolose, Chris Drakeley, Steven R Meshnick and 3 more

Open access · bronzeAbstract read
In one paragraph

Article in The American journal of tropical medicine and hygiene, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
3.0field-weighted citation impact, top 8% 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

18 citing papers in PubMed, 24 citations in OpenAlex.

  1. Prevalence ofThe American journal of tropical medicine and hygiene · 2020
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  18. Treatment of Chronic Asymptomatic Plasmodium falciparum Infection Does Not Increase the Risk of Clinical Malaria Upon Reinfection.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2017
    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

13 authors at 1 institution in 1 country.

Jonathan B ParrDivision of Infectious Diseases, University of North Carolina, Chapel Hill, North Carolina.
Connor BelsonDepartment of Biology, University of North Carolina, Chapel Hill, North Carolina.
Jaymin C PatelDepartment of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina.
Irving F HoffmanDivision of Infectious Diseases, University of North Carolina, Chapel Hill, North Carolina. University of North Carolina Project-Malawi, Lilongwe, Malawi.
Portia KamthunziUniversity of North Carolina Project-Malawi, Lilongwe, Malawi.
Francis MartinsonUniversity of North Carolina Project-Malawi, Lilongwe, Malawi.
Gerald TeghaUniversity of North Carolina Project-Malawi, Lilongwe, Malawi.
Isaac ThengoloseUniversity of North Carolina Project-Malawi, Lilongwe, Malawi.
Chris DrakeleyLondon School of Hygiene and Tropical Medicine, London, United Kingdom.
Steven R MeshnickDepartment of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina.
Veronica EscamilliaDepartment of Obstetrics and Gynecology, University of Chicago, Chicago, Illinois.
Michael EmchDepartment of Geography, University of North Carolina, Chapel Hill, North Carolina.
Jonathan J JulianoDivision of Infectious Diseases, University of North Carolina, Chapel Hill, North Carolina. Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina. Curriculum in Genetics and Molecular Biology, University of North Carolina, Chapel Hill, North Carolina. jjuliano@med.unc.edu.
London School of Hygiene & Tropical Medicine · GB

Funding

Training in Sexually Transmitted Infections and HIVT32AI007001 · NIAID · UNIV OF NORTH CAROLINA CHAPEL HILL · PI SENA-SOBERANO, ARLENE C. · 1985 to 2025
$10.9M
Carolina Population CenterR24HD050924 · NICHD · UNIV OF NORTH CAROLINA CHAPEL HILL · PI MORGAN, SAMUEL PHILIP · 2005 to 2014
$10.0M
INFECTIOUS DISEASE PATHOGENESIS TRAININGT32AI007151 · NIAID · UNIV OF NORTH CAROLINA CHAPEL HILL · PI JULIANO, JONATHAN J · 1985 to 2024
$5.5M
Within Host Selection of P. falciparum Variants by Artemisinin Combination TherapR01AI089819 · NIAID · UNIV OF NORTH CAROLINA CHAPEL HILL · PI JULIANO, JONATHAN J · 2010 to 2014
$1.9M
NIAID NIH HHS R01 AI089819NIAID NIH HHS T32 AI007001NIAID NIH HHS T32 AI007151NICHD NIH HHS R24 HD050924
6 · The paper itself

Abstract

Estimates of malaria transmission intensity (MTI) typically rely upon microscopy or rapid diagnostic testing (RDT). However, these methods are less sensitive than nucleic acid amplification techniques and may underestimate parasite prevalence. We compared microscopy, RDT, and polymerase chain reaction (PCR) for the diagnosis of Plasmodium falciparum parasitemia as part of an MTI study of 800 children and adults conducted in Lilongwe, Malawi. PCR detected more cases of parasitemia than microscopy or RDT. Age less than 5 years predicted parasitemia detected by PCR alone (adjusted odds ratio = 1.61, 95% confidence interval = 1.09-2.38, Wald P = 0.02). In addition, we identified one P. falciparum parasite with a false-negative RDT result due to a suspected deletion of the histidine-rich protein 2 (hrp2) gene and used a novel, ultrasensitive PCR assay to detect low-level parasitemia missed by traditional PCR. Molecular methods should be considered for use in future transmission studies as a supplement to RDT or microscopy.

Indexed as

AdultChildCohort StudiesDiagnostic Tests, RoutineDNA, ProtozoanFemaleHumansIncidenceMalaria, FalciparumMalawiMaleMicroscopyPlasmodium falciparumPolymerase Chain ReactionTime FactorsDNA, Protozoan

Identifiers

PMID27325802
PMCPMC4973184
OpenAlexW2468126155

What OpenQuestion holds

Textmetadata
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.