Evidence map›Paper›PMID 35440465›Full record

ArticleThe British journal of general practice : the journal of the Royal College of General Practitioners2022

Association between oral anticoagulants and COVID-19-related outcomes: a population-based cohort study.

Angel Ys Wong, Laurie Tomlinson, Jeremy P Brown, William Elson, Alex J Walker, Anna Schultze, Caroline E Morton, David Evans, Peter Inglesby, Brian MacKenna and 21 more

Open access · hybridAbstract read
In one paragraph

Article in The British journal of general practice : the journal of the Royal College of General Practitioners, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 26% 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

4 citing papers in PubMed, 1 synthesis or guideline pooled it, 9 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. COVID-19 Diagnosis, Oral Anticoagulation, and Stroke Risk in Patients with Atrial Fibrillation.American journal of cardiovascular drugs : drugs, devices, and other interventions · 2024
    Article
  4. 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

31 authors at 2 institutions in 1 country.

Angel Ys WongFaculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London.
Laurie TomlinsonFaculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London.
Jeremy P BrownFaculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London.
William ElsonFaculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London.
Alex J WalkerThe DataLab, Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford.
Anna SchultzeFaculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London.
Caroline E MortonThe DataLab, Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford.
David EvansThe DataLab, Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford.
Peter InglesbyThe DataLab, Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford.
Brian MacKennaThe DataLab, Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford.
Krishnan BhaskaranFaculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London.
Christopher T RentschFaculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London.
Emma PowellFaculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London.
Elizabeth WilliamsonFaculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London.
Richard CrokerThe DataLab, Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford.
Seb BaconThe DataLab, Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford.
William HulmeThe DataLab, Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford.
Chris BatesTPP, Leeds.
Helen J CurtisThe DataLab, Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford.
Amir MehrkarThe DataLab, Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford.
Jonathan CockburnTPP, Leeds.
Helen I McDonaldFaculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London and NIHR Health Protection Research Unit (HPRU) in Immunisation, London School of Hygiene and Tropical Medicine, London.
Rohini MathurFaculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London.
Kevin WingFaculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London.
Harriet ForbesBristol Medical School, University of Bristol, Bristol.
Rosalind M EggoFaculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London.
Stephen Jw EvansFaculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London.
Liam SmeethFaculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London and NIHR Health Protection Research Unit (HPRU) in Immunisation, London School of Hygiene and Tropical Medicine, London.
Ben GoldacreThe DataLab, Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford.
Ian J DouglasFaculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London.
(The OpenSAFELY Collaborative)
London School of Hygiene & Tropical Medicine · GBUniversity of Bristol · GB

Funding

British Heart Foundation FS/19/19/34175Medical Research Council MR/S003975/1Medical Research Council MR/V015737/1
6 · The paper itself

Abstract

backgroundEarly evidence has shown that anticoagulant reduces the risk of thrombotic events in those infected with COVID-19. However, evidence of the role of routinely prescribed oral anticoagulants (OACs) in COVID-19 outcomes is limited.

aimTo investigate the association between OACs and COVID-19 outcomes in those with atrial fibrillation and a CHA DESIGN AND

settingOn behalf of NHS England, a population-based cohort study was conducted.

methodThe study used primary care data and pseudonymously-linked SARS-CoV-2 antigen testing data, hospital admissions, and death records from England. Cox regression was used to estimate hazard ratios (HRs) for COVID-19 outcomes comparing people with current OAC use versus non-use, accounting for age, sex, comorbidities, other medications, deprivation, and general practice.

resultsOf 71 103 people with atrial fibrillation and a CHA

conclusionAmong those at low baseline stroke risk, people receiving OACs had a lower risk of testing positive for SARS-CoV-2 and severe COVID-19 outcomes than non-users; this might be explained by a causal effect of OACs in preventing severe COVID-19 outcomes or unmeasured confounding, including more cautious behaviours leading to reduced infection risk.

Indexed as

Atrial FibrillationCOVID-19StrokeAdministration, OralAnticoagulantsCohort StudiesHumansSARS-CoV-2AnticoagulantsCOVID-19dabigatranFactor Xa Inhibitorswarfarin

Identifiers

PMID35440465
PMCPMC9037187
OpenAlexW4213014418

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.