Evidence map›Paper›PMID 30252032›Full record

ArticleAmerican journal of epidemiology2019

Association Between Age and Plasmodium falciparum Infection Dynamics.

Andrea G Buchwald, John D Sorkin, Alick Sixpence, Mabvuto Chimenya, Milius Damson, Mark L Wilson, Karl Seydel, Sarah Hochman, Don Mathanga, Terrie E Taylor and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in American journal of epidemiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 12% 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, 1 synthesis or guideline pooled it, 33 citations in OpenAlex.

  1. Pooled it
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  13. Burkitt lymphoma risk shows geographic and temporal associations withProceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  14. Understanding the Intransigence of Malaria in Malawi.The American journal of tropical medicine and hygiene · 2022
    Article
  15. Article
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  18. Observational
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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

11 authors at 5 institutions in 2 countries.

Andrea G BuchwaldCenter for Vaccine Development and Global Health, University of Maryland School of Medicine, Baltimore, Maryland.
John D SorkinGeriatrics Research, Education, and Clinical Center, Baltimore Veterans Affairs Medical Center, Baltimore, Maryland.
Alick SixpenceMalaria Alert Center, University of Malawi College of Medicine, Blantyre, Malawi.
Mabvuto ChimenyaMalaria Alert Center, University of Malawi College of Medicine, Blantyre, Malawi.
Milius DamsonMalaria Alert Center, University of Malawi College of Medicine, Blantyre, Malawi.
Mark L WilsonDepartment of Epidemiology, University of Michigan School of Public Health, Ann Arbor, Michigan.
Karl SeydelCollege of Osteopathic Medicine, Michigan State University, East Lansing, Michigan.
Sarah HochmanDepartment of Medicine, New York University School of Medicine, New York, New York.
Don MathangaMalaria Alert Center, University of Malawi College of Medicine, Blantyre, Malawi.
Terrie E TaylorCollege of Osteopathic Medicine, Michigan State University, East Lansing, Michigan.
Miriam K LauferCenter for Vaccine Development and Global Health, University of Maryland School of Medicine, Baltimore, Maryland.
University of Malawi · MWUniversity of Maryland, Baltimore · USMichigan State University · USNew York University · USUniversity of Michigan · US

Funding

University of Maryland Claude D. Pepper Older Americans Independence Center (UM-OAIC)P30AG028747 · NIA · UNIVERSITY OF MARYLAND BALTIMORE · PI Stephen L. Seliger · 2006 to 2026
$28.9M
The role of monocytes in the pathology of severe malaria.U19AI089683 · NIAID · MICHIGAN STATE UNIVERSITY · PI MATHANGA, DON P, TAYLOR, TERRIE ELLEN · 2010 to 2023
$21.4M
Mentoring in patient-oriented research in global healthK24AI114996 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI LAUFER, MIRIAM K. · 2016 to 2025
$1.6M
NIAID NIH HHS K24 AI114996NIAID NIH HHS U19 AI089683NIA NIH HHS P30 AG028747
6 · The paper itself

Abstract

Few data exist on the incidence or duration of natural Plasmodium falciparum infections in high-transmission settings. School-aged children (SAC) carry a disproportionate burden of infections, suggesting either increased incidence or increased duration. We estimated the incidence and duration of unique infections according to age groups. The Mfera Cohort Study (2014-2017) in Malawi had 2 years of follow-up, with 120 participants tested monthly and during sick visits. Blood samples were collected to detect P. falciparum by microscopy and polymerase chain reaction. Positive samples underwent genotyping. Simulation was used to account for high rates of nondetection of infection among low-parasitemia infections, which increase in frequency with age. Adults had significantly fewer unique infections per person per year (median, 2.5) compared with SAC and children younger than 5 years of age (6.3 and 6.6, respectively). Over half of all genotypes were persistent. Infections lasted significantly longer in adults (median, 180 days) and SAC (median, 163 days) compared with children younger than 5 years of age (median, 97 days), after accounting for age-dependent nondetection of infection. SAC acquired new infections at the same rate as children younger than 5 years, but they maintained these infections for longer periods of time, similar to adults. This study provides new insights into P. falciparum infection dynamics that should be considered when designing malaria control strategies.

Indexed as

AdolescentAdultAgedAge FactorsArtemether, Lumefantrine Drug CombinationChildChild, PreschoolFemaleGenotypeHumansIncidenceInfantInsecticide-Treated BednetsLongitudinal StudiesMalaria, FalciparumMalawiArtemether, Lumefantrine Drug Combination

Identifiers

PMID30252032
PMCPMC6321803
OpenAlexW2900189563

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.