Evidence map›Paper›PMID 34035055›Full record

ArticleCMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne2021

A population-based analysis of the impact of the COVID-19 pandemic on common abdominal and gynecological emergency department visits.

David Gomez, Andrea N Simpson, Colin Sue-Chue-Lam, Charles de Mestral, Fahima Dossa, Jordan Nantais, Andrew S Wilton, David Urbach, Peter C Austin, Nancy N Baxter

Open access · goldAbstract read
In one paragraph

Article in CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 2 pooled it
2.9field-weighted citation impact, top 7% 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

22 citing papers in PubMed, 2 syntheses or guidelines pooled it, 35 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
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  8. Changes in emergency department use in British Columbia, Canada, during the first 3 years of the COVID-19 pandemic.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2023
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  15. Changes in ischemic stroke presentations, management and outcomes during the first year of the COVID-19 pandemic in Alberta: a population study.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2022
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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

10 authors at 4 institutions in 3 countries.

David GomezDivision of General Surgery (Gomez, Nantais), St. Michael's Hospital, Unity Health Toronto; ICES Central (Gomez, Simpson, de Mestral, Wilton, Urbach, Austin, Baxter); Department of Obstetrics and Gynecology (Simpson), St. Michael's Hospital, Unity Health Toronto; Department of Surgery (Sue-Chue-Lam, de Mestral, Dossa, Urbach), Faculty of Medicine, University of Toronto, Toronto, Ont.; Melbourne School of Population and Global Health (Baxter), University of Melbourne, Melbourne, Australia David.gomez@unityhealth.to.
Andrea N SimpsonDivision of General Surgery (Gomez, Nantais), St. Michael's Hospital, Unity Health Toronto; ICES Central (Gomez, Simpson, de Mestral, Wilton, Urbach, Austin, Baxter); Department of Obstetrics and Gynecology (Simpson), St. Michael's Hospital, Unity Health Toronto; Department of Surgery (Sue-Chue-Lam, de Mestral, Dossa, Urbach), Faculty of Medicine, University of Toronto, Toronto, Ont.; Melbourne School of Population and Global Health (Baxter), University of Melbourne, Melbourne, Australia.
Colin Sue-Chue-LamDivision of General Surgery (Gomez, Nantais), St. Michael's Hospital, Unity Health Toronto; ICES Central (Gomez, Simpson, de Mestral, Wilton, Urbach, Austin, Baxter); Department of Obstetrics and Gynecology (Simpson), St. Michael's Hospital, Unity Health Toronto; Department of Surgery (Sue-Chue-Lam, de Mestral, Dossa, Urbach), Faculty of Medicine, University of Toronto, Toronto, Ont.; Melbourne School of Population and Global Health (Baxter), University of Melbourne, Melbourne, Australia.
Charles de MestralDivision of General Surgery (Gomez, Nantais), St. Michael's Hospital, Unity Health Toronto; ICES Central (Gomez, Simpson, de Mestral, Wilton, Urbach, Austin, Baxter); Department of Obstetrics and Gynecology (Simpson), St. Michael's Hospital, Unity Health Toronto; Department of Surgery (Sue-Chue-Lam, de Mestral, Dossa, Urbach), Faculty of Medicine, University of Toronto, Toronto, Ont.; Melbourne School of Population and Global Health (Baxter), University of Melbourne, Melbourne, Australia.
Fahima DossaDivision of General Surgery (Gomez, Nantais), St. Michael's Hospital, Unity Health Toronto; ICES Central (Gomez, Simpson, de Mestral, Wilton, Urbach, Austin, Baxter); Department of Obstetrics and Gynecology (Simpson), St. Michael's Hospital, Unity Health Toronto; Department of Surgery (Sue-Chue-Lam, de Mestral, Dossa, Urbach), Faculty of Medicine, University of Toronto, Toronto, Ont.; Melbourne School of Population and Global Health (Baxter), University of Melbourne, Melbourne, Australia.
Jordan NantaisDivision of General Surgery (Gomez, Nantais), St. Michael's Hospital, Unity Health Toronto; ICES Central (Gomez, Simpson, de Mestral, Wilton, Urbach, Austin, Baxter); Department of Obstetrics and Gynecology (Simpson), St. Michael's Hospital, Unity Health Toronto; Department of Surgery (Sue-Chue-Lam, de Mestral, Dossa, Urbach), Faculty of Medicine, University of Toronto, Toronto, Ont.; Melbourne School of Population and Global Health (Baxter), University of Melbourne, Melbourne, Australia.
Andrew S WiltonDivision of General Surgery (Gomez, Nantais), St. Michael's Hospital, Unity Health Toronto; ICES Central (Gomez, Simpson, de Mestral, Wilton, Urbach, Austin, Baxter); Department of Obstetrics and Gynecology (Simpson), St. Michael's Hospital, Unity Health Toronto; Department of Surgery (Sue-Chue-Lam, de Mestral, Dossa, Urbach), Faculty of Medicine, University of Toronto, Toronto, Ont.; Melbourne School of Population and Global Health (Baxter), University of Melbourne, Melbourne, Australia.
David UrbachDivision of General Surgery (Gomez, Nantais), St. Michael's Hospital, Unity Health Toronto; ICES Central (Gomez, Simpson, de Mestral, Wilton, Urbach, Austin, Baxter); Department of Obstetrics and Gynecology (Simpson), St. Michael's Hospital, Unity Health Toronto; Department of Surgery (Sue-Chue-Lam, de Mestral, Dossa, Urbach), Faculty of Medicine, University of Toronto, Toronto, Ont.; Melbourne School of Population and Global Health (Baxter), University of Melbourne, Melbourne, Australia.
Peter C AustinDivision of General Surgery (Gomez, Nantais), St. Michael's Hospital, Unity Health Toronto; ICES Central (Gomez, Simpson, de Mestral, Wilton, Urbach, Austin, Baxter); Department of Obstetrics and Gynecology (Simpson), St. Michael's Hospital, Unity Health Toronto; Department of Surgery (Sue-Chue-Lam, de Mestral, Dossa, Urbach), Faculty of Medicine, University of Toronto, Toronto, Ont.; Melbourne School of Population and Global Health (Baxter), University of Melbourne, Melbourne, Australia.
Nancy N BaxterDivision of General Surgery (Gomez, Nantais), St. Michael's Hospital, Unity Health Toronto; ICES Central (Gomez, Simpson, de Mestral, Wilton, Urbach, Austin, Baxter); Department of Obstetrics and Gynecology (Simpson), St. Michael's Hospital, Unity Health Toronto; Department of Surgery (Sue-Chue-Lam, de Mestral, Dossa, Urbach), Faculty of Medicine, University of Toronto, Toronto, Ont.; Melbourne School of Population and Global Health (Baxter), University of Melbourne, Melbourne, Australia.
University of Melbourne · AUBaxter (Australia) · AUBaxter (United States) · USUnity Health Toronto

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundReduced use of the emergency department during the COVID-19 pandemic may result in increased disease acuity when patients do seek health care services. We sought to evaluate emergency department visits for common abdominal and gynecologic conditions before and at the beginning of the pandemic to determine whether changes in emergency department attendance had serious consequences for patients.

methodsWe conducted a population-based analysis using administrative data to evaluate the weekly rate of emergency department visits pre-COVID-19 (Jan. 1-Mar. 10, 2020) and during the beginning of the COVID-19 pandemic (Mar. 11-June 30, 2020), compared with a historical control period (Jan. 1-July 1, 2019). All residents of Ontario, Canada, presenting to the emergency department with appendicitis, cholecystitis, ectopic pregnancy or miscarriage were included. We evaluated weekly incidence rate ratios (IRRs) of emergency department visits, management strategies and clinical outcomes.

resultsAcross all study periods, 39 691 emergency department visits met inclusion criteria (40.2 % appendicitis, 32.1% miscarriage, 21.3% cholecystitis, 6.4% ectopic pregnancy). Baseline characteristics of patients presenting to the emergency department did not vary across study periods. After an initial reduction in emergency department visits, presentations for cholecystitis and ectopic pregnancy quickly returned to expected levels. However, presentations for appendicitis and miscarriage showed sustained reductions (IRR 0.61-0.80), with 1087 and 984 fewer visits, respectively, after the start of the pandemic, relative to 2019. Management strategies, complications and mortality rates were similar across study periods for all conditions.

interpretationAlthough our study showed evidence of emergency department avoidance in Ontario during the first wave of the COVID-19 pandemic, no adverse consequences were evident. Emergency care and outcomes for patients were similar before and during the pandemic.

Indexed as

AppendicitisCholecystitisCOVID-19Genital Diseases, FemaleAbortion, SpontaneousAdultAgedCross-Sectional StudiesEmergency Service, HospitalFacilities and Services UtilizationFemaleHumansMaleMiddle AgedOntarioPandemics

Identifiers

PMID34035055
PMCPMC8177921
OpenAlexW3164087247

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.