Evidence map›Paper›PMID 34586002›Full record

ArticleInfectious diseases (London, England)2022

Lower plasma calcium associated with COVID-19, but not with disease severity: a two-centre retrospective cohort study.

Jan Arne Deodatus, Simone Anna Kooistra, Steef Kurstjens, Joram Cornèl Leon Mossink, Joris David van Dijk, Paul Hendrik Pieter Groeneveld, Brigitta Britt Yarine Maxime van der Kolk

Open access · greenAbstract read
In one paragraph

Article in Infectious diseases (London, England), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.8field-weighted citation impact, top 23% 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

8 citing papers in PubMed, 13 citations in OpenAlex.

  1. Article
  2. Review
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  4. Article
  5. Association ofGenes · 2023
    Article
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  7. Article
  8. Renal Manifestations and their Association with Mortality and Length of Stay in COVID-19 Patients at a Safety-net Hospital.Journal of critical care medicine (Universitatea de Medicina si Farmacie din Targu-Mures) · 2022
    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

7 authors at 2 institutions in 1 country.

Jan Arne DeodatusIsala Hospital, Zwolle, The Netherlands.ORCID 0000-0002-1961-0947
Simone Anna KooistraIsala Hospital, Zwolle, The Netherlands.
Steef KurstjensJeroen Bosch Hospital, 's-Hertogenbosch, The Netherlands.
Joram Cornèl Leon MossinkIsala Hospital, Zwolle, The Netherlands.
Joris David van DijkIsala Hospital, Zwolle, The Netherlands.ORCID 0000-0001-7514-789X
Paul Hendrik Pieter GroeneveldIsala Hospital, Zwolle, The Netherlands.
Brigitta Britt Yarine Maxime van der KolkIsala Hospital, Zwolle, The Netherlands.ORCID 0000-0003-0849-452X
Isala · NLJeroen Bosch Ziekenhuis · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPrevious studies indicate hypocalcaemia as a potential diagnostic and prognostic marker of corona-virus disease 2019 (COVID-19). Our aim was to investigate these relations in more detail in a large test cohort and an independent validation cohort.

methodsWe retrospectively included 2792 COVID-19 suspected patients that presented to the emergency department (ED) of two hospitals. Plasma calcium and ionized plasma calcium levels were compared between COVID-19 positive and negative patients, and between severe and non-severe COVID-19 patients using univariate and multivariate analyses in the first hospital (

resultsA total of 693 (24.8%) of the enrolled patients were COVID-19 positive, of whom 238 (34.3%) had severe COVID-19. In both hospitals, COVID-19 positive patients had lower plasma calcium levels than COVID-19 negative patients, regardless of correction for albumin, in univariate and multivariate analysis (Δ0.06-0.13 mmol/L,

conclusionsPlasma calcium concentrations were lower in COVID-19 positive than COVID-19 negative patients but we found no association with disease severity in multivariate analyses. Further understanding of plasma calcium perturbation may facilitate the development of new preventive and therapeutic modalities for the current pandemic.

Indexed as

CalciumCOVID-19HumansRetrospective StudiesSARS-CoV-2Severity of Illness IndexCalciumCOVID-19hypocalcaemiaplasma calciumSARS-CoV-2severe acute respiratory syndrome coronavirus-2

Identifiers

PMID34586002
PMCPMC8500306
OpenAlexW3203846060

What OpenQuestion holds

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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.