Evidence map›Paper›PMID 34251730›Full record

Trial reportInternational journal of clinical practice2021

Assessment of severity and mortality of COVID-19 with anti-A1 and anti-B IgM isohaemagglutinins, a reflection of the innate immune status.

Fatih Ozcelik, Alpaslan Tanoglu, Bulent Barıs Guven, Umran Keskin, Mustafa Kaplan

Open access · greenAbstract readRandomized Controlled Trial
In one paragraph

Trial report in International journal of clinical practice, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.6field-weighted citation impact, top 37% 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

3 citing papers in PubMed, 7 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
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

5 authors at 3 institutions in 4 countries.

Fatih OzcelikDepartment of Medical Biochemistry, University of Health Sciences Turkey, Sultan 2. Abdulhamid Han Training and Research Hospital, Istanbul, Turkey.ORCID https://orcid.org/0000-0003-2439-3964
Alpaslan TanogluDepartment of Gastroenterology, University of Health Sciences Turkey, Sancaktepe Şehit Prof Dr Ilhan Varank Training and Research Hospital, Istanbul, Turkey.ORCID https://orcid.org/0000-0002-7477-6640
Bulent Barıs GuvenDepartment of Anesthesia and Reanimation, University of Health Sciences Turkey, Sultan 2. Abdulhamid Han Training and Research Hospital, Istanbul, Turkey.ORCID https://orcid.org/0000-0002-3628-7408
Umran KeskinDepartment of Internal Medicine, University of Health Sciences Turkey, Haydarpasa Numune Training and Research Hospital, Istanbul, Turkey.ORCID https://orcid.org/0000-0002-7494-2733
Mustafa KaplanDepartment of Internal Medicine, University of Health Sciences Turkey, Sultan 2. Abdulhamid Han Training and Research Hospital, Istanbul, Turkey.ORCID https://orcid.org/0000-0002-0354-4762
Sağlık Bilimleri Üniversitesi · TRHaydarpaşa Numune Eğitim ve Araştırma Hastanesi · TRUniversity of Health Science · KH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsThe relationship between the innate immune system that creates the polysaccharide antibody response and COVID-19 is not fully understood. In this study, it was aimed to determine the predictive values of isohaemagglutinins in COVID-19 severity/mortality.

methodsApproximately 15 440 patients diagnosed with COVID-19 were examined, and a total of 286 patients with anti-B and anti-A1 IgM isohaemagglutinins test results were randomly enrolled in the study. These patients were stratified into two groups according to anti-A1 (n: 138 blood type B or O) and anti-B (n: 148 blood type A) IgM isohaemagglutinins. Anti-A1 or/and anti-B IgM, biochemical parameters, symptoms, chronic diseases, hospitalisation status, intubation status, admission to intensive care unit (ICU) and exitus status were recorded and evaluated for all patients.

resultsAnti-A1 IgM and anti-B IgM were significantly lower in ICU patients (7.5 ± 9.9 vs 18.0 ± 20.4 and 5.5 ± 6.3 vs 19.3 ± 33.6 titres, respectively; P < .01) and in exitus patients (3.8 ± 3.6 vs 16.7 ± 18.7 and 3.5 ± 4.7 vs 16.9 ± 29.6 titres respectively; P < .01). In the ROC analysis performed to differentiate between exitus and discharge within groups, the sensitivity of anti-B IgM and anti-A1 IgM at cut-off ≤4 was 88.9% and 79.6%, specificity 66.0% and 73.4%, and AUC 0.831 and 0.861, respectively (P < .01). Anti-A1 IgM decreased the mortality risk 0.811 times per unit while anti-B IgM decreased 0.717 times (P < .01).

conclusionAnti-B and anti-A1 isohaemagglutinins, which are an expression of the innate immune system, can be used to predict the severity and mortality of COVID-19 disease.

Indexed as

COVID-19HemagglutininsHumansImmunity, InnateImmunoglobulin MIntensive Care UnitsSARS-CoV-2HemagglutininsImmunoglobulin M

Identifiers

PMID34251730
PMCPMC8420313
OpenAlexW3177911766

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.