Evidence map›Paper›PMID 34205564›Full record

ArticleMicroorganisms2021

Confounding Factors Influencing the Kinetics and Magnitude of Serological Response Following Administration of BNT162b2.

Jean-Louis Bayart, Laure Morimont, Mélanie Closset, Grégoire Wieërs, Tatiana Roy, Vincent Gerin, Marc Elsen, Christine Eucher, Sandrine Van Eeckhoudt, Nathalie Ausselet and 5 more

Open access · goldAbstract read
In one paragraph

Article in Microorganisms, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
2.4field-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

30 citing papers in PubMed, 42 citations in OpenAlex.

  1. Trial
  2. Immunoglobulin G and neutralizing antibody response after CoronaVac.Revista da Associacao Medica Brasileira (1992) · 2026
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  16. Inhaled corticosteroids do not affect the antibody titer against the SARS-CoV-2 spike protein in BNT162b2 mRNA vaccinated patients.Allergy, asthma, and clinical immunology : official journal of the Canadian Society of Allergy and Clinical Immunology · 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

15 authors at 4 institutions in 1 country.

Jean-Louis BayartDepartment of Laboratory Medicine, Clinique Saint-Pierre, 1340 Ottignies-Louvain-la-Neuve, Belgium.
Laure MorimontNamur Thrombosis and Hemostasis Center, Department of Pharmacy, Namur Research Institute for Life Sciences, University of Namur, 5000 Namur, Belgium.ORCID 0000-0001-9195-304X
Mélanie ClossetDepartment of Laboratory Medicine, CHU-UCL Namur, Université Catholique de Louvain, 5530 Yvoir, Belgium.
Grégoire WieërsDepartment of Internal Medicine, Clinique Saint-Pierre, 1340 Ottignies-Louvain-la-Neuve, Belgium.
Tatiana RoyDepartment of Laboratory Medicine, Clinique Saint-Pierre, 1340 Ottignies-Louvain-la-Neuve, Belgium.
Vincent GerinDepartment of Laboratory Medicine, Clinique Saint-Pierre, 1340 Ottignies-Louvain-la-Neuve, Belgium.
Marc ElsenDepartment of Laboratory Medicine, Clinique Saint-Luc Bouge, 5004 Namur, Belgium.
Christine EucherDepartment of Laboratory Medicine, Clinique Saint-Luc Bouge, 5004 Namur, Belgium.
Sandrine Van EeckhoudtDepartment of Internal Medicine, Clinique Saint-Luc Bouge, 5004 Namur, Belgium.
Nathalie AusseletDepartment of Internal Medicine, CHU-UCL Namur, Université Catholique de Louvain, 5530 Yvoir, Belgium.ORCID 0000-0002-4094-7923
Clara DavidQUALIblood S.A., 5000 Namur, Belgium.
François MullierDepartment of Laboratory Medicine, CHU-UCL Namur, Université Catholique de Louvain, 5530 Yvoir, Belgium.ORCID 0000-0001-6947-6099
Jean-Michel DognéNamur Thrombosis and Hemostasis Center, Department of Pharmacy, Namur Research Institute for Life Sciences, University of Namur, 5000 Namur, Belgium.
Julien FavresseNamur Thrombosis and Hemostasis Center, Department of Pharmacy, Namur Research Institute for Life Sciences, University of Namur, 5000 Namur, Belgium.
Jonathan DouxfilsNamur Thrombosis and Hemostasis Center, Department of Pharmacy, Namur Research Institute for Life Sciences, University of Namur, 5000 Namur, Belgium.ORCID 0000-0002-7644-5298
Clinique Saint Pierre · BEUniversity of Namur · BEClinique Saint-Joseph · BEUCLouvain · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLittle is known about potential confounding factors influencing the humoral response in individuals having received the BNT162b2 vaccine.

methodsBlood samples from 231 subjects were collected before and 14, 28, and 42 days following coronavirus disease 2019 (COVID-19) vaccination with BNT162b2. Anti-spike receptor-binding-domain protein (anti-Spike/RBD) immunoglobulin G (IgG) antibodies were measured at each time-point. Impact of age, sex, childbearing age status, hormonal therapy, blood group, body mass index and past-history of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection were assessed by multivariable analyses. RESULTS AND

conclusionsIn naïve subjects, the level of anti-Spike/RBD antibodies gradually increased following administration of the first dose to reach the maximal response at day 28 and then plateauing at day 42. In vaccinated subjects with previous SARS-CoV-2 infection, the plateau was reached sooner (i.e., at day 14). In the naïve population, age had a significant negative impact on anti-Spike/RBD titers at days 14 and 28 while lower levels were observed for males at day 42, when corrected for other confounding factors. Body mass index (BMI) as well as B and AB blood groups had a significant impact in various subgroups on the early response at day 14 but no longer after. No significant confounding factors were highlighted in the previously infected group.

Indexed as

ageantibodyblood-groupBMIBNT162b2genderkineticSARS-CoV-2serologyvaccine

Identifiers

PMID34205564
PMCPMC8235462
OpenAlexW3170924268

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.