Evidence map›Paper›PMID 34851137›Full record

ArticleMicrobiology spectrum2021

Implementation and Accuracy of BinaxNOW Rapid Antigen COVID-19 Test in Asymptomatic and Symptomatic Populations in a High-Volume Self-Referred Testing Site.

Zishan K Siddiqui, Mihir Chaudhary, Matthew L Robinson, Anna B McCall, Ria Peralta, Rogette Esteve, Charles W Callahan, Yukari C Manabe, James D Campbell, J Kristie Johnson and 4 more

Abstract read
In one paragraph

Article in Microbiology spectrum, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 4 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

16 citing papers in PubMed, 4 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
    Pooled it
  2. The Infectious Diseases Society of America Guidelines on the Diagnosis of COVID-19: Antigen Testing (January 2023).Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2024
    Guideline
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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

14 authors.

Zishan K SiddiquiDepartment of Medicine, The Johns Hopkins University School of Medicinegrid.471401.7, Baltimore, Maryland, USA.ORCID 0000-0002-8790-5958
Mihir ChaudharyDepartment of Surgery, University of California-East Bay, Oakland, California, USA.
Matthew L RobinsonDepartment of Medicine, The Johns Hopkins University School of Medicinegrid.471401.7, Baltimore, Maryland, USA.
Anna B McCallBaltimore Convention Center Field Hospital, Baltimore, Maryland, USA.
Ria PeraltaBaltimore Convention Center Field Hospital, Baltimore, Maryland, USA.
Rogette EsteveBaltimore Convention Center Field Hospital, Baltimore, Maryland, USA.
Charles W CallahanPopulation Health, University of Maryland Medical System, Baltimore, Maryland, USA.
Yukari C ManabeDepartment of Medicine, The Johns Hopkins University School of Medicinegrid.471401.7, Baltimore, Maryland, USA.
James D CampbellCenter for Vaccine Development and Global Health, Department of Pediatrics, University of Maryland School of Medicine, Baltimore, Maryland, USA.
J Kristie JohnsonDepartment of Pathology, University of Maryland School of Medicine, Baltimore, Maryland, USA.
Maryam ElhabashyUniversity of Maryland Baltimore County, Catonsville, Maryland, USA.
Melinda KantsiperDivision of Hospital Medicine, The Johns Hopkins Bayview Medical Center, Baltimore, Maryland, USA.
CONQUER COVID Consortium
James R FickeDepartment of Orthopedic Surgery, The Johns Hopkins University, Baltimore, Maryland, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Rapid antigen tests are simple to perform and provide results within 15 min. We describe our implementation and assess performance of the BinaxNOW COVID-19 Antigen Test (Abbott Laboratories) in 6,099 adults at a self-referred walk-up testing site. Participants were grouped by self-reported COVID-19 exposure and symptom status. Most (89%) were asymptomatic, of whom 17% reported potential exposure. Overall test sensitivity compared with reference laboratory reverse-transcription [RT] PCR testing was 81% (95% confidence interval [CI] 75%, 86%). It was higher in symptomatic (87%; 95% CI 80%, 91%) than asymptomatic (71%; 95% CI 61%, 80%) individuals. Sensitivity was 82% (95% CI 66%, 91%) for asymptomatic individuals with potential exposure and 64% (95% CI 51%, 76%) for those with no exposure. Specificity was greater than 99% for all groups. BinaxNOW has high accuracy among symptomatic individuals and is below the FDA threshold for emergency use authorization in asymptomatic individuals. Nonetheless, rapid antigen testing quickly identifies positive among those with symptoms and/or close contact exposure and could expedite isolation and treatment.

Indexed as

SARS-CoV-2AdultAntigens, ViralAsymptomatic DiseasesCOVID-19COVID-19 TestingFemaleHumansMaleMobile Health UnitsPoint-of-Care TestingPolymerase Chain ReactionSensitivity and SpecificityAntigens, ViralCOVID-19field hospitalpoint-of-care testingrapid antigen testingreverse transcription PCRSARS-CoV-2sensitivity and specificity

Identifiers

PMID34851137
PMCPMC8668078

What OpenQuestion holds

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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.