Evidence map›Paper›PMID 31266786›Full record

ArticleCMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne2019

Combined impacts of multimorbidity and mental disorders on frequent emergency department visits: a retrospective cohort study in Quebec, Canada.

Myles Gaulin, Marc Simard, Bernard Candas, Alain Lesage, Caroline Sirois

Open access · goldAbstract read
In one paragraph

Article in CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
4.3field-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

40 citing papers in PubMed, 65 citations in OpenAlex.

  1. Article
  2. Polypharmacy Thresholds that Best Predict Emergency Room Visits and Mortality in Older Adults: A Population-Based Study in Québec, Canada.Journal of applied gerontology : the official journal of the Southern Gerontological Society · 2026
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  7. Higher-Order Disease Interactions in Multimorbidity Measurement: Marginal Benefit Over Additive Disease Summation.The journals of gerontology. Series A, Biological sciences and medical sciences · 2024
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  12. Emergency Department Use among Patients with Mental Health Problems: Profiles, Correlates, and Outcomes.International journal of environmental research and public health · 2024
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 1 institution in 3 countries.

Myles GaulinDépartement de médecine sociale et préventive (Gaulin, Candas, Sirois), Faculté de médecine, Université Laval, Québec, Que.; Institut national de santé publique du Québec (INSPQ) (Gaulin, Simard, Lesage, Sirois), Montréal, Que.; Institut national d'excellence en santé et services sociaux (INESSS) (Candas), Québec, Que.; Département de psychiatrie (Lesage), Université de Montréal, Montréal, Que.
Marc SimardDépartement de médecine sociale et préventive (Gaulin, Candas, Sirois), Faculté de médecine, Université Laval, Québec, Que.; Institut national de santé publique du Québec (INSPQ) (Gaulin, Simard, Lesage, Sirois), Montréal, Que.; Institut national d'excellence en santé et services sociaux (INESSS) (Candas), Québec, Que.; Département de psychiatrie (Lesage), Université de Montréal, Montréal, Que. Marc.Simard@inspq.qc.ca.
Bernard CandasDépartement de médecine sociale et préventive (Gaulin, Candas, Sirois), Faculté de médecine, Université Laval, Québec, Que.; Institut national de santé publique du Québec (INSPQ) (Gaulin, Simard, Lesage, Sirois), Montréal, Que.; Institut national d'excellence en santé et services sociaux (INESSS) (Candas), Québec, Que.; Département de psychiatrie (Lesage), Université de Montréal, Montréal, Que.
Alain LesageDépartement de médecine sociale et préventive (Gaulin, Candas, Sirois), Faculté de médecine, Université Laval, Québec, Que.; Institut national de santé publique du Québec (INSPQ) (Gaulin, Simard, Lesage, Sirois), Montréal, Que.; Institut national d'excellence en santé et services sociaux (INESSS) (Candas), Québec, Que.; Département de psychiatrie (Lesage), Université de Montréal, Montréal, Que.
Caroline SiroisDépartement de médecine sociale et préventive (Gaulin, Candas, Sirois), Faculté de médecine, Université Laval, Québec, Que.; Institut national de santé publique du Québec (INSPQ) (Gaulin, Simard, Lesage, Sirois), Montréal, Que.; Institut national d'excellence en santé et services sociaux (INESSS) (Candas), Québec, Que.; Département de psychiatrie (Lesage), Université de Montréal, Montréal, Que.
Institut National de Santé Publique du Québec · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMultimorbidity and mental disorders are independently associated with frequent visits to the emergency department (≥ 3 visits/yr), but their interaction has been little studied. We aimed to measure the interaction between mental disorders and physical multimorbidity with respect to frequent visits to the emergency department.

methodsWe conducted a population-based cohort study of adults in Quebec from 2012 to 2016, using the Quebec Integrated Chronic Disease Surveillance System. We assessed multimorbidity as the number of physical illnesses and mental disorders as serious (psychotic or bipolar disorders), common or absent, using data from 2012 to 2014. We counted emergency department visits from 2014 to 2015. We used logistic regression to estimate interaction on frequent visits to the emergency department from 2 perspectives: of public health (additive scale as differences in risk) and of individual patients (multiplicative scale as odds ratios).

resultsEach additional physical illness was associated with a greater increase in the absolute risk of frequent visits to the emergency department for people with mental disorders. Between 0 and ≥ 4 physical conditions, the absolute risk increased more for individuals with serious mental disorders (16.2%) than common (15.3%) or no disorders (11.4%). On the relative scale, for people with no mental disorders and ≥ 4 physical conditions, odds of frequent visits to the emergency department were 6.2 (95% confidence interval [CI] 6.08-6.35) times the odds for people with no physical conditions. For individuals with common and serious mental illnesses, corresponding odds ratios were 4.75 (95% CI 4.60-4.90) and 3.7 (95% CI 3.18-3.57), respectively.

interpretationMental disorders interact with physical multimorbidity to increase the odds of frequent visits to the emergency department. More research is needed on interventions that promote high-quality care for mental illness, especially in the context of physical multimorbidity.

Indexed as

AdolescentAdultAgedAged, 80 and overEmergency Service, HospitalFemaleHumansMaleMental DisordersMiddle AgedMultimorbidityMultiple Chronic ConditionsPopulation SurveillanceQuebecRetrospective StudiesSeverity of Illness Index

Identifiers

PMID31266786
PMCPMC6606417
OpenAlexW2955200844

What OpenQuestion holds

Textmetadata
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.