Evidence map›Paper›PMID 30992042›Full record

ArticleScandinavian journal of trauma, resuscitation and emergency medicine2019

Repeated ambulance use is associated with chronic diseases - a population-based historic cohort study of patients' symptoms and diagnoses.

Morten Breinholt Søvsø, Torben Anders Kløjgaard, Poul Anders Hansen, Erika Frischknecht Christensen

Abstract readMulticenter Study
In one paragraph

Article in Scandinavian journal of trauma, resuscitation and emergency medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing 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

23 citing papers in PubMed.

  1. Article
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  3. Frequent users of the ambulance service in a Swedish region: a retrospective cohort study.Scandinavian journal of trauma, resuscitation and emergency medicine · 2026
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  7. An analysis of ambulance re-contacts after non-conveyance: a retrospective cohort study in the Netherlands.Scandinavian journal of trauma, resuscitation and emergency medicine · 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

4 authors.

Morten Breinholt SøvsøCentre for Prehospital and Emergency Research, Department of Clinical Medicine, Aalborg University, Søndre Skovvej 15, 9000, Aalborg, Denmark. morten.soevsoe@rn.dk.ORCID http://orcid.org/0000-0002-3156-5595
Torben Anders KløjgaardCentre for Prehospital and Emergency Research, Department of Clinical Medicine, Aalborg University, Søndre Skovvej 15, 9000, Aalborg, Denmark.
Poul Anders HansenEmergency Medical Services, Aalborg, North Denmark Region, Denmark.
Erika Frischknecht ChristensenCentre for Prehospital and Emergency Research, Department of Clinical Medicine, Aalborg University, Søndre Skovvej 15, 9000, Aalborg, Denmark.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThere is a growing demand for emergency medical services (EMS) and patients are repeatedly transported by ambulance services. For many patients, especially those with chronic disease, there may be better ways of delivering care. We examined the symptom at time of emergency call and the hospital diagnosis for those ambulance users who repeatedly received an ambulance.

methodsPopulation-based historic cohort study of patients receiving an ambulance after an emergency call between 2011 and 2014: one-time users (i.e. one ambulance run in any 12 month period) were compared to two-time users (two runs in any 12 month period) and frequent users (>two runs). The presenting symptom according to the Danish Index for Emergency Care from the EMS calls and the hospital ICD-10 discharge diagnoses were obtained from patient records.

resultsWe included 52 533 patients (65 932 emergency ambulance runs). Repeated users constituted 16% of the patients (two-time users 11% and frequent users 5%) and one third of all ambulance runs. The symptoms showing the largest increase in frequency with increasing ambulance use were breathing difficulty (N = 3 905-15% were frequent users); seizure (N = 2 437-10% were frequent users), chest pain (N = 7 616-17% were frequent users), and alcohol intoxication (N = 1 998-5% were frequent users). The hospital diagnoses with a corresponding increase were respiratory diseases (N = 4 381) - 13% were frequent users), mental disorders (predominately abuse of alcohol) (N = 3 087-10% were frequent users) and neurological diseases (predominately epilepsy) (N = 2 207-6% were frequent users). 5% of one-time users, 12% of two-time users and 16% of frequent users had a Charlson Comorbidity Index > = 3.

conclusionRepeated use of ambulance services was common and associated with chronic health problems such as chronic respiratory diseases, epilepsy, mental disorders with alcohol abuse and comorbidity. Alternative methods of caring for many of these patients should be considered.

trial registrationNone.

Indexed as

Population SurveillanceAmbulancesCall CentersChronic DiseaseDenmarkEmergency Medical ServicesFemaleFollow-Up StudiesHumansIncidenceMaleMedical RecordsMiddle AgedTransportation of PatientsAmbulanceDenmarkDiagnosesEmergency callEmergency medical servicesFrequent usersRepeated users

Identifiers

PMID30992042
PMCPMC6469091

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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.