Evidence map›Paper›PMID 34501290›Full record

ArticleJournal of clinical medicine2021

Incidence of COVID-19 Hospitalisation in Patients with Systemic Lupus Erythematosus: A Nationwide Cohort Study from Denmark.

René Cordtz, Salome Kristensen, Louise Plank Holm Dalgaard, Rasmus Westermann, Kirsten Duch, Jesper Lindhardsen, Christian Torp-Pedersen, Lene Dreyer

Open access · goldAbstract read
In one paragraph

Article in Journal of clinical medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
4.9field-weighted citation impact, top 4% 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

17 citing papers in PubMed, 31 citations in OpenAlex.

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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

8 authors at 3 institutions in 1 country.

René CordtzDepartment of Rheumatology, Aalborg University Hospital, 9000 Aalborg, Denmark.
Salome KristensenDepartment of Rheumatology, Aalborg University Hospital, 9000 Aalborg, Denmark.ORCID 0000-0001-5812-5234
Louise Plank Holm DalgaardDepartment of Rheumatology, Aalborg University Hospital, 9000 Aalborg, Denmark.
Rasmus WestermannDepartment of Rheumatology, Aalborg University Hospital, 9000 Aalborg, Denmark.ORCID 0000-0002-8148-9658
Kirsten DuchDepartment of Rheumatology, Aalborg University Hospital, 9000 Aalborg, Denmark.
Jesper LindhardsenLupus and Vasculitis Clinic, Center for Rheumatology and Spine Diseases, Rigshospitalet, 2100 Copenhagen, Denmark.
Christian Torp-PedersenDepartment of Cardiology, Nordsjællands Hospital, 3400 Hillerod, Denmark.
Lene DreyerDepartment of Rheumatology, Aalborg University Hospital, 9000 Aalborg, Denmark.
Aalborg University Hospital · DKRigshospitalet · DKUniversity of Copenhagen · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPatients with systemic lupus erythematosus (SLE) have an increased risk of infections due to impaired immune functions, disease activity, and treatment. This study investigated the impact of having SLE on the incidence of hospitalisation with COVID-19 infection.

methodsThis was a nationwide cohort study from Denmark between 1 March 2020 to 2 February 2021, based on the linkage of several nationwide registers. The adjusted incidence of COVID-19 hospitalisation was estimated for patients with SLE compared with the general population in Cox-regression models. Among SLE patients, the hazard ratio (HR) for hospitalisation was analysed as nested case-control study.

resultsSixteen of the 2533 SLE patients were hospitalised with COVID-19 infection. The age-sex adjusted rate per 1000 person years was 6.16 (95% CI 3.76-10.08) in SLE patients, and the corresponding hazard ratio was 2.54 (95% CI 1.55-4.16) compared with the matched general population group after adjustment for comorbidities. Among SLE patients, hydroxychloroquine treatment was associated with a HR for hospitalisation of 0.61 (95% CI 0.19-1.88), and 1.06 (95% CI 0.3-3.72) for glucocorticoid treatment.

conclusionPatients with SLE were at increased risk of hospitalisation with COVID-19.

Indexed as

COVID-19glucocorticoidshydroxychloroquinesystemic lupus erythematosus

Identifiers

PMID34501290
PMCPMC8432052
OpenAlexW3198579816

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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.