Evidence map›Paper›PMID 33612113›Full record

ArticleBMC medicine2021

Relation of severe COVID-19 to polypharmacy and prescribing of psychotropic drugs: the REACT-SCOT case-control study.

Paul M McKeigue, Sharon Kennedy, Amanda Weir, Jen Bishop, Stuart J McGurnaghan, David McAllister, Chris Robertson, Rachael Wood, Nazir Lone, Janet Murray and 8 more

Open access · goldAbstract read
In one paragraph

Article in BMC medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 8 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 8 pooled it
3.7field-weighted citation impact, top 5% 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

42 citing papers in PubMed, 8 syntheses or guidelines pooled it, 60 citations in OpenAlex.

  1. Pooled it
  2. Psychotropic drug repurposing for COVID-19: A Systematic Review and Meta-Analysis.European neuropsychopharmacology : the journal of the European College of Neuropsychopharmacology · 2023
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  7. Proton pump inhibitor use is associated with increased risk of severity and mortality from coronavirus disease 2019 (COVID-19) infection.Digestive and liver disease : official journal of the Italian Society of Gastroenterology and the Italian Association for the Study of the Liver · 2020
    Pooled it
  8. Polypharmacy among COVID-19 patients: A systematic review.Journal of the American Pharmacists Association : JAPhA
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  13. Association of Polypharmacy and Burden of Comorbidities on COVID-19 Adverse Outcomes in People with Type 1 or Type 2 Diabetes.Diabetes therapy : research, treatment and education of diabetes and related disorders · 2025
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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

18 authors at 4 institutions in 1 country.

Paul M McKeigueUsher Institute, College of Medicine and Veterinary Medicine, University of Edinburgh, Teviot Place, Edinburgh, EH8 9AG, Scotland. paul.mckeigue@ed.ac.uk.ORCID 0000-0002-5217-1034
Sharon KennedyNHS Information Services Division (Public Health Scotland), Gyle Square, 1 South Gyle Crescent, Edinburgh, EH12 9EB, Scotland.
Amanda WeirPublic Health Scotland, Meridian Court, 5 Cadogan Street, Glasgow, G2 6QE, Scotland.
Jen BishopPublic Health Scotland, Meridian Court, 5 Cadogan Street, Glasgow, G2 6QE, Scotland.
Stuart J McGurnaghanInstitute of Genetics and Molecular Medicine, College of Medicine and Veterinary Medicine, University of Edinburgh, Western General Hospital Campus, Crewe Road, Edinburgh, EH4 2XUC, Scotland.
David McAllisterPublic Health Scotland, Meridian Court, 5 Cadogan Street, Glasgow, G2 6QE, Scotland.
Chris RobertsonPublic Health Scotland, Meridian Court, 5 Cadogan Street, Glasgow, G2 6QE, Scotland.
Rachael WoodNHS Information Services Division (Public Health Scotland), Gyle Square, 1 South Gyle Crescent, Edinburgh, EH12 9EB, Scotland.
Nazir LoneUsher Institute, College of Medicine and Veterinary Medicine, University of Edinburgh, Teviot Place, Edinburgh, EH8 9AG, Scotland.
Janet MurrayPublic Health Scotland, Meridian Court, 5 Cadogan Street, Glasgow, G2 6QE, Scotland.
Thomas M CaparrottaInstitute of Genetics and Molecular Medicine, College of Medicine and Veterinary Medicine, University of Edinburgh, Western General Hospital Campus, Crewe Road, Edinburgh, EH4 2XUC, Scotland.
Alison Smith-PalmerPublic Health Scotland, Meridian Court, 5 Cadogan Street, Glasgow, G2 6QE, Scotland.
David GoldbergPublic Health Scotland, Meridian Court, 5 Cadogan Street, Glasgow, G2 6QE, Scotland.
Jim McMenaminPublic Health Scotland, Meridian Court, 5 Cadogan Street, Glasgow, G2 6QE, Scotland.
Bruce GuthrieUsher Institute, College of Medicine and Veterinary Medicine, University of Edinburgh, Teviot Place, Edinburgh, EH8 9AG, Scotland.
Sharon HutchinsonPublic Health Scotland, Meridian Court, 5 Cadogan Street, Glasgow, G2 6QE, Scotland.
Helen M ColhounPublic Health Scotland, Meridian Court, 5 Cadogan Street, Glasgow, G2 6QE, Scotland.
Public Health Scotland COVID-19 Health Protection Study Group
Public Health Scotland · GBWestern General Hospital · GBGlasgow Caledonian University · GBUniversity of Strathclyde · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe objective of this study was to investigate the relation of severe COVID-19 to prior drug prescribing.

methodsSevere cases were defined by entry to critical care or fatal outcome. For this matched case-control study (REACT-SCOT), all 4251 cases of severe COVID-19 in Scotland since the start of the epidemic were matched for age, sex and primary care practice to 36,738 controls from the population register. Records were linked to hospital discharges since June 2015 and dispensed prescriptions issued in primary care during the last 240 days.

resultsSevere COVID-19 was strongly associated with the number of non-cardiovascular drug classes dispensed. This association was strongest in those not resident in a care home, in whom the rate ratio (95% CI) associated with dispensing of 12 or more drug classes versus none was 10.8 (8.8, 13.3), and in those without any of the conditions designated as conferring increased risk of COVID-19. Of 17 drug classes postulated at the start of the epidemic to be "medications compromising COVID", all were associated with increased risk of severe COVID-19 and these associations were present in those without any of the designated risk conditions. The fraction of cases in the population attributable to exposure to these drug classes was 38%. The largest effect was for antipsychotic agents: rate ratio 4.18 (3.42, 5.11). Other drug classes with large effects included proton pump inhibitors (rate ratio 2.20 (1.72, 2.83) for = 2 defined daily doses/day), opioids (3.66 (2.68, 5.01) for = 50 mg morphine equivalent/day) and gabapentinoids. These associations persisted after adjusting for covariates and were stronger with recent than with non-recent exposure.

conclusionsSevere COVID-19 is associated with polypharmacy and with drugs that cause sedation, respiratory depression, or dyskinesia; have anticholinergic effects; or affect the gastrointestinal system. These associations are not easily explained by co-morbidity. Measures to reduce the burden of mortality and morbidity from COVID-19 should include reinforcing existing guidance on reducing overprescribing of these drug classes and limiting inappropriate polypharmacy. REGISTRATION: ENCEPP number EUPAS35558.

Indexed as

PolypharmacySeverity of Illness IndexAgedAged, 80 and overCase-Control StudiesComorbidityCOVID-19Critical CareDose-Response Relationship, DrugDrug PrescriptionsFemaleHumansMaleMiddle AgedPsychotropic DrugsScotlandPsychotropic DrugsAntipsychotic agentsCOVID-19GabapentinoidsOpioidsOverprescribingPharmacoepidemiologyPolypharmacyProton pump inhibitors

Identifiers

PMID33612113
PMCPMC7897516
OpenAlexW3120206959

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.