Evidence map›Paper›PMID 30307567›Full record

ArticleThe Journal of infectious diseases2019

Transmission and Age Impact the Risk of Developing Febrile Malaria in Children with Asymptomatic Plasmodium falciparum Parasitemia.

Kevin Wamae, Juliana Wambua, George Nyangweso, Gabriel Mwambingu, Faith Osier, Francis Ndung'u, Philip Bejon, Lynette Isabella Ochola-Oyier

Open access · hybridAbstract read
In one paragraph

Article in The Journal of infectious diseases, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
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

22 citing papers in PubMed, 34 citations in OpenAlex.

  1. Observational
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Breadth of Antibodies toFrontiers in immunology · 2022
    Article
  18. Immunosuppression in Malaria: DoPathogens (Basel, Switzerland) · 2021
    Review
  19. Article
  20. 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

8 authors at 3 institutions in 2 countries.

Kevin WamaeKenya Medical Research Institute Wellcome Trust Research Programme, Kilifi, Kenya.
Juliana WambuaKenya Medical Research Institute Wellcome Trust Research Programme, Kilifi, Kenya.
George NyangwesoKenya Medical Research Institute Wellcome Trust Research Programme, Kilifi, Kenya.
Gabriel MwambinguKenya Medical Research Institute Wellcome Trust Research Programme, Kilifi, Kenya.
Faith OsierKenya Medical Research Institute Wellcome Trust Research Programme, Kilifi, Kenya.
Francis Ndung'uKenya Medical Research Institute Wellcome Trust Research Programme, Kilifi, Kenya.
Philip BejonKenya Medical Research Institute Wellcome Trust Research Programme, Kilifi, Kenya.
Lynette Isabella Ochola-OyierKenya Medical Research Institute Wellcome Trust Research Programme, Kilifi, Kenya.
Kenya Medical Research Institute · KEChurchill Hospital · GBUniversity of Nairobi · KE

Funding

EPA EP-C-15-003Medical Research Council G1002624Wellcome TrustWellcome Trust 107568/Z/15/ZWellcome Trust 107769/Z/10/Z
6 · The paper itself

Abstract

backgroundPlasmodium falciparum infections lead to febrile illness unless the host has sufficient immunity, in which case infection may cause no immediate symptoms (ie, "asymptomatic parasitemia"). Previous studies are conflicting on the role of asymptomatic parasitemia in determining the risk of developing febrile malaria.

methodsWe monitored 2513 children (living in Kilifi, Kenyan Coast) by blood smears in 17 cross-sectional surveys to identify asymptomatic parasitemia and used active surveillance over 11325 child-years of follow-up to detect febrile malaria. We evaluated the interaction between transmission intensity, age, and asymptomatic parasitemia in determining the risk of developing febrile malaria.

resultsIn the moderate and high transmission intensity settings, asymptomatic parasitemia was associated with a reduced risk of febrile malaria in older children (> 3 years), while in the lower transmission setting, asymptomatic parasitemia was associated with an increased risk of febrile malaria in children of all ages. Additionally, the risk associated with asymptomatic parasitemia was limited to the first 90 days of follow-up.

conclusionsAsymptomatic parasitemia is modified by transmission intensity and age, altering the risk of developing febrile episodes and suggesting that host immunity plays a prominent role in mediating this process.

Indexed as

AdolescentAge FactorsAsymptomatic InfectionsChildChild, PreschoolCross-Sectional StudiesFemaleHumansInfantInfant, NewbornKenyaMalaria, FalciparumMaleParasitemiaPlasmodium falciparumPrognosisageasymptomaticimmunityPlasmodium falciparumtransmission

Identifiers

PMID30307567
PMCPMC6386809
OpenAlexW2898046876

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.