Evidence map›Paper›PMID 35918062›Full record

ArticleEmergency medicine Australasia : EMA2023

Epidemiology, outcomes and predictors of mortality in patients transported by ambulance for dyspnoea: A population-based cohort study.

Jennifer Zhou, Emily Nehme, Luke Dawson, Jason Bloom, Ziad Nehme, Daniel Okyere, Shelley Cox, David Anderson, Michael Stephenson, Karen Smith and 2 more

Open access · hybridAbstract read
In one paragraph

Article in Emergency medicine Australasia : EMA, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 11% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 12 citations in OpenAlex.

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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

12 authors at 2 institutions in 1 country.

Jennifer ZhouDepartment of Cardiology, Alfred Health, Melbourne, Victoria, Australia.ORCID 0000-0003-4801-2388
Emily NehmeAmbulance Victoria, Melbourne, Victoria, Australia.ORCID 0000-0002-1579-9279
Luke DawsonDepartment of Cardiology, Alfred Health, Melbourne, Victoria, Australia.
Jason BloomDepartment of Cardiology, Alfred Health, Melbourne, Victoria, Australia.
Ziad NehmeAmbulance Victoria, Melbourne, Victoria, Australia.
Daniel OkyereAmbulance Victoria, Melbourne, Victoria, Australia.
Shelley CoxAmbulance Victoria, Melbourne, Victoria, Australia.ORCID 0000-0003-3549-025X
David AndersonDepartment of Cardiology, Alfred Health, Melbourne, Victoria, Australia.
Michael StephensonAmbulance Victoria, Melbourne, Victoria, Australia.
Karen SmithAmbulance Victoria, Melbourne, Victoria, Australia.
David M KayeDepartment of Cardiology, Alfred Health, Melbourne, Victoria, Australia.
Dion StubDepartment of Cardiology, Alfred Health, Melbourne, Victoria, Australia.
Ambulance Victoria · AUBaker Heart and Diabetes Institute · AU

Funding

Ambulance VictoriaDepartment of Cardiology, Alfred HealthNational Health and Medical Research CouncilNational Heart Foundation of Australia
6 · The paper itself

Abstract

objectivesThere are currently limited data to inform the management of patients transported by emergency medical services (EMS) with dyspnoea. We aimed to describe the incidence, aetiology and outcomes of patients transported by EMS for dyspnoea using a large population-based sample and to identify factors associated with 30-day mortality.

methodsConsecutive EMS attendances for dyspnoea in Victoria, Australia from January 2015 to June 2019 were included. Data were individually linked to hospital and mortality records to determine incidence, diagnoses, and outcomes. Factors associated with 30-day mortality were assessed using multivariable logistic regression.

resultsDuring the study period, there were 2 505 324 cases attended by EMS, of whom 346 228 (14%) met inclusion criteria for dyspnoea. The incidence of EMS attendances for dyspnoea was 1566 per 100 000 person-years, and was higher in females, older patients and socially disadvantaged areas. Of the 271 204 successfully linked cases (median age 76 years; 51% women), 79% required hospital admission with a 30-day mortality of 9%. The most common final diagnoses (and 30-day mortality rates) were lower respiratory tract infection (13%, mortality 11%), chronic obstructive pulmonary disease (13%, mortality 6.4%), heart failure (9.1%, mortality 9.8%), arrhythmias (3.9%, mortality 4.4%), acute coronary syndromes (3.9%, mortality 9.5%) and asthma (3.2%, mortality 0.5%). Predictors of mortality included older age, male sex, pre-existing chronic kidney disease, heart failure or cancer, abnormal respiratory status or vital signs and pre-hospital intubation.

conclusionDyspnoea is a common presentation with a broad range of causes and is associated with high rates of hospitalisation and death.

Indexed as

Emergency Medical ServicesHeart FailureAgedAmbulancesCohort StudiesDyspneaFemaleHumansMaleRetrospective StudiesVictoriaambulancedyspnoeaemergency medicineepidemiologyshortness of breath

Identifiers

PMID35918062
PMCPMC10947453
OpenAlexW4289524034

What OpenQuestion holds

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LicenceCC BY
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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.