Evidence map›Paper›PMID 32294111›Full record

SynthesisPloS one2020

Association between boarding in the emergency department and in-hospital mortality: A systematic review.

Zoubir Boudi, Dominique Lauque, Mohamed Alsabri, Linda Östlundh, Churchill Oneyji, Anna Khalemsky, Carlos Lojo Rial, Shan W Liu, Carlos A Camargo, Elhadi Aburawi and 8 more

Registry-linked trialAbstract readSystematic Review
In one paragraph

Synthesis in PloS one, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07532564 (Cost of Emergency Department Boarding for Hospitalized Patients in a Statewide Medical System), which is not on this map. Cited by 48 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed, 1 pooled it
–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.

NCT07532564 completednot on this mapstarted 2022, after this paper: background citation

Cost of Emergency Department Boarding for Hospitalized Patients in a Statewide Medical System

TypeobservationalSponsorUniversity of Maryland, BaltimoreRan2022 to 2025Enrolled30,486ConditionsStroke (CVA) or TIA, Diabetes, Asthma (Diagnosis), COPD (Chronic Obstructive Pulmonary Disease)
3 · Its place in the literature

Who cites it

48 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Boarding times of patients admitted to the Emergency Department of an Ethiopian hospital.African journal of emergency medicine : Revue africaine de la medecine d'urgence · 2026
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  11. Is a Prolonged Emergency Department Stay a Risk for Patient Safety?Journal of the American College of Emergency Physicians open · 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.

Zoubir BoudiEmergency Medicine Department, Dr Sulaiman Alhabib Hospital, Dubai, UAE.
Dominique LauqueEmergency Medicine Department, Beth Israel Deaconess Medical Center, Teaching Hospital of Harvard Medical School, Harvard Medical School, Boston, Massachusetts, United States of America.ORCID 0000-0003-3207-0604
Mohamed AlsabriEmergency Medicine Department, Beth Israel Deaconess Medical Center, Teaching Hospital of Harvard Medical School, Harvard Medical School, Boston, Massachusetts, United States of America.
Linda ÖstlundhThe National Medical Library, College of Medicine and Health Sciences, UAE University, Al Ain, UAE.
Churchill OneyjiEmergency Medicine Department, Beth Israel Deaconess Medical Center, Teaching Hospital of Harvard Medical School, Harvard Medical School, Boston, Massachusetts, United States of America.
Anna KhalemskyHadassah Academic College, Jerusalem, Israel.
Carlos Lojo RialEmergency Medicine Department, St. Thomas' Hospital, London, England, United Kingdom.
Shan W LiuDepartment of Emergency Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, United States of America.
Carlos A CamargoDepartment of Emergency Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, United States of America.
Elhadi AburawiDepartment of Paediatrics, College of Medicine and Health Sciences, UAE University, Al Ain, UAE.ORCID 0000-0001-5200-9048
Martin MoeckelDivision of Emergency and Acute Medicine, Campus Virchow Klinikum and Charité Campus Mitte, Charité Universitätsmedizin Berlin, Germany.
Anna SlagmanDivision of Emergency and Acute Medicine, Campus Virchow Klinikum and Charité Campus Mitte, Charité Universitätsmedizin Berlin, Germany.
Michael ChristEmergency Department, Lucerne, Switzerland.
Adam SingerDepartment of Emergency Medicine, Stony Brook University, Stony Brook, New York, United States of America.
Karim TazarourteDepartment of Emergency Medicine, University Hospital, Hospices Civils, Lyon, France.
Niels K RathlevDepartment of Emergency Medicine, University of Massachusetts Medical School, Baystate, Springfield, United States of America.
Shamai A GrossmanEmergency Medicine Department, Beth Israel Deaconess Medical Center, Teaching Hospital of Harvard Medical School, Harvard Medical School, Boston, Massachusetts, United States of America.
Abdelouahab BellouEmergency Medicine Department, Beth Israel Deaconess Medical Center, Teaching Hospital of Harvard Medical School, Harvard Medical School, Boston, Massachusetts, United States of America.ORCID 0000-0003-3457-5585

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

importanceBoarding in the emergency department (ED) is a critical indicator of quality of care for hospitals. It is defined as the time between the admission decision and departure from the ED. As a result of boarding, patients stay in the ED until inpatient beds are available; moreover, boarding is associated with various adverse events. STUDY

objectiveThe objective of our systematic review was to determine whether ED boarding (EDB) time is associated with in-hospital mortality (IHM).

methodsA systematic search was conducted in academic databases to identify relevant studies. Medline, PubMed, Scopus, Embase, Cochrane, Web of Science, Cochrane, CINAHL and PsychInfo were searched. We included all peer-reviewed published studies from all previous years until November 2018. Studies performed in the ED and focused on the association between EDB and IHM as the primary objective were included. Extracted data included study characteristics, prognostic factors, outcomes, and IHM. A search update in PubMed was performed in May 2019 to ensure the inclusion of recent studies before publishing.

resultsFrom the initial 4,321 references found through the systematic search, the manual screening of reference lists and the updated search in PubMed, a total of 12 studies were identified as eligible for a descriptive analysis. Overall, six studies found an association between EDB and IHM, while five studies showed no association. The last remaining study included both ICU and non-ICU subgroups and showed conflicting results, with a positive association for non-ICU patients but no association for ICU patients. Overall, a tendency toward an association between EDB and IHM using the pool random effect was observed.

conclusionOur systematic review did not find a strong evidence for the association between ED boarding and IHM but there is a tendency toward this association. Further well-controlled, international multicenter studies are needed to demonstrate whether this association exists and whether there is a specific EDB time cut-off that results in increased IHM.

Indexed as

Hospital MortalityEmergency Service, HospitalHumansInpatientsLength of StayOutcome Assessment, Health CarePatient AdmissionRisk FactorsTime Factors

Identifiers

PMID32294111
PMCPMC7159217

What OpenQuestion holds

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Registered trials

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.