Evidence map›Paper›PMID 35172833›Full record

SynthesisMalaria journal2022

Detection of asymptomatic malaria in Asian countries: a meta-analysis of diagnostic accuracy.

Cho Naing, Norah Htet Htet, Saint Nway Aye, Htar Htar Aung, Marcel Tanner, Maxine A Whittaker

Open access · goldAbstract readMeta-Analysis
In one paragraph

Synthesis in Malaria journal, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 2 pooled it
3.2field-weighted citation impact, top 9% 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

15 citing papers in PubMed, 2 syntheses or guidelines pooled it, 17 citations in OpenAlex.

  1. Pooled it
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  5. Hotspot districts of persistentThe Lancet regional health. Southeast Asia · 2025
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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

6 authors at 3 institutions in 3 countries.

Cho Naing *International Medical University, Kuala Lumpur, Malaysia. cho3699@gmail.com.ORCID http://orcid.org/0000-0003-3425-7149
Norah Htet Htet *International Medical University, Kuala Lumpur, Malaysia.
Saint Nway Aye *International Medical University, Kuala Lumpur, Malaysia.
Htar Htar Aung *International Medical University, Kuala Lumpur, Malaysia.
Marcel Tanner *Swiss Tropical and Public Health Institute (Swiss TPH), Basel, Switzerland.
Maxine A Whittaker *James Cook University, College of Public Health, Medical and Veterinary Sciences, Douglas, QLD, Australia.
IMU University · MYJames Cook University · AUSwiss Tropical and Public Health Institute · CH

Funding

World Health Organization 2017/721367-0
6 · The paper itself

Abstract

backgroundAchieving malaria elimination requires the targeting of the human reservoir of infection, including those patients with asymptomatic infection. The objective was to synthesise evidence on the accuracy of the rapid-onsite diagnostic tests (RDTs) and microscopy for the detection of asymptomatic malaria as part of the surveillance activities in Asian countries.

methodsThis was a meta-analysis of diagnostic test accuracy. Relevant studies that evaluated the diagnostic performance of RDTs and microscopy for detection of asymptomatic malaria were searched in health-related electronic databases. The methodological quality of the studies included was assessed using the QUADAS-2 tool.

resultsTen studies assessing RDT and/or microscopy were identified. The diagnostic accuracies in all these studies were verified by PCR. Overall, the pooled sensitivities of RDT, as well as microscopy for detection of any malaria parasites in asymptomatic participants, were low, while their pooled specificities were almost ideal. For the detection of Plasmodium falciparum, pooled sensitivity by RDT (59%, 95%CI:16-91%) or microscopy (55%, 95%CI: 25-82%) were almost comparable. For detection of Plasmodium vivax, pooled sensitivity of RDT (51%, 95% CI:7-94%) had also the comparable accuracy of microscopy (54%, 95%CI,11-92%). Of note are the wide range of sensitivity and specificity.

conclusionThe findings of this meta-analysis suggest that RDTs and microscopy have limited sensitivity and are inappropriate for the detection of asymptomatic Plasmodium infections. Other methods including a combination of PCR-based strategies, Loop-Mediated Isothermal Amplification (LAMP) technique must be considered to target these infections, in order to achieve malaria elimination. However, more data is needed for the wide acceptance and feasibility of these approaches. Studies to explore the role of asymptomatic and sub-patent infections in the transmission of malaria are of critical importance and are recommended.

Indexed as

MalariaMalaria, FalciparumPlasmodiumDiagnostic Tests, RoutineHumansPlasmodium falciparumPlasmodium vivaxSensitivity and Specificity

Identifiers

PMID35172833
PMCPMC8848787
OpenAlexW4213188215

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.