Evidence map›Paper›PMID 33928384›Full record

ArticleLaboratory medicine2021

Utility of Antigen-Based Rapid Diagnostic Test for Detection of SARS-CoV-2 Virus in Routine Hospital Settings.

Preeti Thakur, Sonal Saxena, Vikas Manchanda, Neha Rana, Ruchi Goel, Ritu Arora

Abstract read
In one paragraph

Article in Laboratory medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 6 pooled it
–field-weighted citation impact
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

12 citing papers in PubMed, 6 syntheses or guidelines pooled it.

  1. Rapid, point-of-care antigen tests for diagnosis of SARS-CoV-2 infection.The Cochrane database of systematic reviews · 2025
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  3. Rapid, point-of-care antigen tests for diagnosis of SARS-CoV-2 infection.The Cochrane database of systematic reviews · 2022
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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.

Preeti ThakurDepartment of Microbiology, Maulana Azad Medical College, New Delhi, India.
Sonal SaxenaDepartment of Microbiology, Maulana Azad Medical College, New Delhi, India.
Vikas ManchandaDepartment of Microbiology, Maulana Azad Medical College, New Delhi, India.
Neha RanaDepartment of Microbiology, Maulana Azad Medical College, New Delhi, India.
Ruchi GoelDepartment of Ophthalmology, Guru Nanak Eye Center, New Delhi, India.
Ritu AroraDepartment of Ophthalmology, Guru Nanak Eye Center, New Delhi, India.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThis study aims to evaluate the performance of an antigen-based rapid diagnostic test (RDT) for the detection of the SARS-CoV-2 virus.

methodsA cross-sectional study was conducted on 677 patients. Two nasopharyngeal swabs and 1 oropharyngeal swab were collected from patients. The RDT was performed onsite by a commercially available immune-chromatographic assay on the nasopharyngeal swab. The nasopharyngeal and oropharyngeal swabs were examined for SARS-CoV-2 RNA by real-time reverse-transcription quantitative polymerase chain reaction (RT-qPCR) assay.

resultsThe overall sensitivity of the SARS-CoV-2 RDT was 34.5% and the specificity was 99.8%. The positive predictive value and negative predictive value of the test were 96.6% and 91.5%, respectively. The detection rate of RDT in RT-qPCR positive results was high (45%) for cycle threshold values <25.

conclusionThe utility of RDT is in diagnosing symptomatic patients and may not be particularly suited as a screening tool for patients with low viral load. The low sensitivity of RDT does not qualify its use as a single test in patients who test negative; RT-qPCR continues to be the gold standard test.

Indexed as

AdolescentAgedAged, 80 and overAntigens, ViralAutomation, LaboratoryChromatography, AffinityCOVID-19COVID-19 Serological TestingCross-Sectional StudiesFemaleHumansMaleMiddle AgedNasopharynxOropharynxReagent Kits, DiagnosticAntigens, ViralReagent Kits, DiagnosticRNA, ViralCOVID-19rapid antigen testRDTRT-qPCR

Identifiers

PMID33928384
PMCPMC8135470

What OpenQuestion holds

Textmetadata
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Registered trials

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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.