Evidence map›Paper›PMID 33828214›Full record

ArticleScientific reports2021

Evaluation of 11 SARS-CoV-2 antibody tests by using samples from patients with defined IgG antibody titers.

Nina Lagerqvist, Kimia T Maleki, Jenny Verner-Carlsson, Mikaela Olausson, Joakim Dillner, Julia Wigren Byström, Tor Monsen, Mattias Forsell, Jenny Eriksson, Gordana Bogdanovic and 10 more

Open access · goldAbstract readEvaluation Study
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
1.9field-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

23 citing papers in PubMed, 31 citations in OpenAlex.

  1. Article
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  7. Lateral Flow Immunoassays for SARS-CoV-2.Diagnostics (Basel, Switzerland) · 2022
    Review
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  11. Article
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  13. Article
  14. Immunological response against SARS-CoV-2 following full-dose administration of Comirnaty® COVID-19 vaccine in nursing home residents.Clinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases · 2022
    Article
  15. Article
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  19. Review
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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

20 authors at 6 institutions in 1 country.

Nina LagerqvistDepartment of Microbiology, Public Health Agency of Sweden, Solna, Sweden. nina.lagerqvist@folkhalsomyndigheten.se.
Kimia T MalekiDepartment of Microbiology, Public Health Agency of Sweden, Solna, Sweden.
Jenny Verner-CarlssonDepartment of Microbiology, Public Health Agency of Sweden, Solna, Sweden.
Mikaela OlaussonDepartment of Microbiology, Public Health Agency of Sweden, Solna, Sweden.
Joakim DillnerDepartment of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden.
Julia Wigren ByströmDepartment of Clinical Microbiology, Umeå University, Umeå, Sweden.
Tor MonsenDepartment of Clinical Microbiology, Umeå University, Umeå, Sweden.
Mattias ForsellDepartment of Clinical Microbiology, Umeå University, Umeå, Sweden.
Jenny ErikssonRegion Västmanland, Västerås, Sweden.
Gordana BogdanovicKarolinska University Hospital, Stockholm, Sweden.
Sandra MuschiolKarolinska University Hospital, Stockholm, Sweden.
Joel LjunggrenRegion Västernorrland, County Hospital of Västernorrland, Sundsvall, Sweden.
Johanna RepoRegion Västernorrland, County Hospital of Västernorrland, Sundsvall, Sweden.
Torbjörn KjerstadiusRegion Värmland, Centralsjukhuset, Karlstad, Sweden.
Shaman MuradrasoliDepartment of Microbiology, Public Health Agency of Sweden, Solna, Sweden.
Mia BryttingDepartment of Microbiology, Public Health Agency of Sweden, Solna, Sweden.
Åsa Szekely BjörndalDepartment of Microbiology, Public Health Agency of Sweden, Solna, Sweden.
Thomas ÅkerlundDepartment of Microbiology, Public Health Agency of Sweden, Solna, Sweden.
Charlotta NilssonDepartment of Microbiology, Public Health Agency of Sweden, Solna, Sweden.
Jonas KlingströmDepartment of Microbiology, Public Health Agency of Sweden, Solna, Sweden.
Public Health Agency of Sweden · SEUmeå University · SEKarolinska Institutet · SEKarolinska University Hospital · SEABB (Sweden) · SEKarlstad Central Hospital · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We evaluated the performance of 11 SARS-CoV-2 antibody tests using a reference set of heat-inactivated samples from 278 unexposed persons and 258 COVID-19 patients, some of whom contributed serial samples. The reference set included samples with a variation in SARS-CoV-2 IgG antibody titers, as determined by an in-house immunofluorescence assay (IFA). The five evaluated rapid diagnostic tests had a specificity of 99.0% and a sensitivity that ranged from 56.3 to 81.6% and decreased with low IFA IgG titers. The specificity was > 99% for five out of six platform-based tests, and when assessed using samples collected ≥ 22 days after symptom onset, two assays had a sensitivity of > 96%. These two assays also detected samples with low IFA titers more frequently than the other assays. In conclusion, the evaluated antibody tests showed a heterogeneity in their performances and only a few tests performed well with samples having low IFA IgG titers, an important aspect for diagnostics and epidemiological investigations.

Indexed as

AdolescentAdultAgedAged, 80 and overAntibodies, ViralChildChild, PreschoolCOVID-19COVID-19 Serological TestingFemaleHumansImmunoglobulin GMaleMiddle AgedSARS-CoV-2Sensitivity and SpecificityAntibodies, ViralImmunoglobulin G

Identifiers

PMID33828214
PMCPMC8027209
OpenAlexW3127202054

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.