Evidence map›Paper›PMID 41870807›Full record

ArticleCJEM2026

Are patients seen by a supervised learner more likely to return to the Emergency Department? A regional multi-centre cohort study of electronic health records.

Isabelle N Colmers-Gray, Leandro Solis Aguilar, Brian R Holroyd, Brandy A Stauffer

Abstract readMulticenter Study
PubMed Publisher
In one paragraph

Article in CJEM, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

4 authors.

Isabelle N Colmers-GrayDepartment of Emergency Medicine, Queen's University, Kingston, ON, Canada. isabelle.gray@queensu.ca.ORCID 0000-0003-0092-5436
Leandro Solis AguilarDepartment of Biochemistry, Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, AB, Canada.
Brian R HolroydDepartment of Emergency Medicine, University of Alberta, Edmonton, AB, Canada.
Brandy A StaufferDepartment of Emergency Medicine, University of Alberta, Edmonton, AB, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionTeaching hospitals are vital for training future physicians, yet there is concern that the presence of learners may increase unscheduled emergency department (ED) return visits. Previous studies of this phenomenon are limited to a sample of EDs in a region. Our study aimed to address this gap using a comprehensive regional dataset and multiple academic years of routinely collected electronic medical record data. Our objective was to determine whether ED patients seen by supervised learners had higher rates of unscheduled return visits within 72 hours compared to those seen by attending physicians alone. Secondary outcomes were return visits resulting in hospital admission and the impact of learner training level.

methodsWe conducted a cohort study of over 1 million ED discharges across nine linked hospitals in a large Canadian health region between July 1, 2015, and June 30, 2018. The primary outcome was the rate of unscheduled return visits within 72 hours. Secondary outcomes included return visits with hospital admission and critical care admission. Logistic regression models were adjusted for patient demographics, acuity, and site characteristics.

resultsAmong 1,033,026 patient visits, 7.4% returned within 72 hours. There was no statistically significant difference in unscheduled return visits between supervised learners and attending physicians alone (adjusted RR 0.98, 95% CI 0.96-1.00, p = 0.054). Return visit admissions were slightly higher among patients seen by learners (adjusted RR 1.06, 95% CI 1.01-1.13), primarily those seen by medical students and off-service residents. Emergency medicine residents in mid-training had lower return visit rates than attendings.

conclusionsPatients seen by supervised learners in a regional ED network did not have increased rates of unscheduled return visits. Further research is warranted to explore factors underlying return visit admissions in learner-involved care.

Indexed as

Electronic Health RecordsEmergency Service, HospitalPatient ReadmissionAdolescentAdultCanadaCohort StudiesEmergency Room VisitsFemaleHospitals, TeachingHumansMaleMiddle AgedRetrospective StudiesAdmissionLearnersPediatricSafetySupervisionUnscheduled return visit

Identifiers

PMID41870807

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.