Evidence map›Paper›PMID 23766527›Full record

SynthesisThe Journal of infectious diseases2013

Gametocyte dynamics and the role of drugs in reducing the transmission potential of Plasmodium vivax.

Nicholas M Douglas, Julie A Simpson, Aung Pyae Phyo, Hadjar Siswantoro, Armedy R Hasugian, Enny Kenangalem, Jeanne Rini Poespoprodjo, Pratap Singhasivanon, Nicholas M Anstey, Nicholas J White and 3 more

Open access · bronzeAbstract readMeta-Analysis
In one paragraph

Synthesis in The Journal of infectious diseases, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
4.9field-weighted citation impact, top 5% 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

44 citing papers in PubMed, 61 citations in OpenAlex.

  1. Trial
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  6. Efficacy of primaquine-chloroquine combination onParasite epidemiology and control · 2026
    Article
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  13. Delayed gametocyte clearance inAntimicrobial agents and chemotherapy · 2024
    Article
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  19. Novel highly-multiplexed AmpliSeq targeted assay forFrontiers in cellular and infection microbiology · 2022
    Article
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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

13 authors at 7 institutions in 5 countries.

Nicholas M DouglasGlobal Health Division, Menzies School of Health Research, Charles Darwin University, Darwin 0811, Australia.
Julie A Simpson
Aung Pyae Phyo
Hadjar Siswantoro
Armedy R Hasugian
Enny Kenangalem
Jeanne Rini Poespoprodjo
Pratap Singhasivanon
Nicholas M Anstey
Nicholas J White
Emiliana Tjitra
Francois Nosten
Ric N Price
Mahidol University · THMinistry of Health · IDNuffield Orthopaedic Centre · GBState University of Papua · IDCharles Darwin University · AUShoklo Malaria Research Unit · THThe University of Melbourne · AU

Funding

Wellcome Trust 089275Wellcome Trust 091625Wellcome Trust 093956
6 · The paper itself

Abstract

backgroundDesigning interventions that will reduce transmission of vivax malaria requires knowledge of Plasmodium vivax gametocyte dynamics.

methodsWe analyzed data from a randomized controlled trial in northwestern Thailand and 2 trials in Papua, Indonesia, to identify and compare risk factors for vivax gametocytemia at enrollment and following treatment.

resultsA total of 492 patients with P. vivax infections from Thailand and 476 patients (162 with concurrent falciparum parasitemia) from Indonesia were evaluable. Also, 84.3% (415/492) and 66.6% (209/314) of patients with monoinfection were gametocytemic at enrollment, respectively. The ratio of gametocytemia to asexual parasitemia did not differ between acute and recurrent infections (P = .48 in Thailand, P = .08 in Indonesia). High asexual parasitemia was associated with an increased risk of gametocytemia during follow-up in both locations. In Thailand, the cumulative incidence of gametocytemia between day 7 and day 42 following dihydroartemisinin + piperaquine (DHA + PIP) was 6.92% vs 29.1% following chloroquine (P < .001). In Indonesia, the incidence of gametocytemia was 33.6% following artesunate + amodiaquine (AS + AQ), 7.42% following artemether + lumefantrine, and 6.80% following DHA + PIP (P < .001 for DHA + PIP vs AS + AQ).

conclusionsP. vivax gametocyte carriage mirrors asexual-stage infection. Prevention of relapses, particularly in those with high asexual parasitemia, is likely the most important strategy for interrupting P. vivax transmission.

Indexed as

AdolescentAdultAntimalarialsChildChild, PreschoolFemaleHumansIndonesiaInfantMalaria, VivaxMaleParasitemiaPlasmodium vivaxRandomized Controlled Trials as TopicSecondary PreventionThailandAntimalarialsantimalarial drugsepidemiologygametocytesPlasmodium vivaxtransmission

Identifiers

PMID23766527
PMCPMC3733516
OpenAlexW2130622695

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.