Evidence map›Paper›PMID 31753864›Full record

ArticleBMJ open2019

Prehospital time and mortality in patients requiring a highest priority emergency medical response: a Danish registry-based cohort study.

Elisabeth Helen Anna Mills, Kristian Aasbjerg, Steen Moeller Hansen, Kristian Bundgaard Ringgren, Michael Dahl, Bodil Steen Rasmussen, Christian Torp-Pedersen, Peter Søgaard, Kristian Kragholm

Abstract readMulticenter Study
In one paragraph

Article in BMJ open, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing 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

20 citing papers in PubMed.

  1. Article
  2. Observational
  3. Article
  4. Article
  5. Article
  6. A classification system for identifying patients dead on ambulance arrival: a prehospital medical record review.Scandinavian journal of trauma, resuscitation and emergency medicine · 2023
    Article
  7. Article
  8. Observational
  9. Article
  10. Article
  11. The impact of regionalized trauma care on the distribution of severely injured patients in the Netherlands.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2022
    Article
  12. Observational
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Observational
  19. Article
  20. Article
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

9 authors.

Elisabeth Helen Anna MillsDepartment of Epidemiology and Biostatistics, Aalborg University Hospital, Aalborg, Denmark e.mills@rn.dk.ORCID 0000-0002-7499-3880
Kristian AasbjergDepartment of Epidemiology and Biostatistics, Aalborg University Hospital, Aalborg, Denmark.
Steen Moeller HansenDepartment of Epidemiology and Biostatistics, Aalborg University Hospital, Aalborg, Denmark.
Kristian Bundgaard RinggrenDepartment of Epidemiology and Biostatistics, Aalborg University Hospital, Aalborg, Denmark.
Michael DahlDepartment of Anaesthesiology and Intensive Care Medicine, Aalborg University Hospital, Aalborg, Denmark.
Bodil Steen RasmussenDepartment of Anaesthesiology and Intensive Care Medicine, Aalborg University Hospital, Aalborg, Denmark.
Christian Torp-PedersenDepartment of Cardiology and Clinical Research, Nordsjællands Hospital, Hillerød, Denmark.
Peter SøgaardDepartment of Cardiology, Aalborg University Hospital, Aalborg, Denmark.
Kristian KragholmDepartment of Anaesthesiology and Intensive Care Medicine, Aalborg University Hospital, Aalborg, Denmark.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo examine the association between time from emergency medical service vehicle dispatch to hospital arrival and 1-day and 30-day mortality.

designRegister-based cohort study.

settingNorth Denmark Region (≈8000 km

participantsWe included all highest priority dispatched ambulance transports in North Denmark Region in 2006-2012.

interventionsUsing logistic regression and the g-formula approach, we examined the association between time from emergency dispatch to hospital arrival and mortality for presumed heart, respiratory, cerebrovascular and other presumed medical conditions, as well as traffic or other accidents, as classified by emergency dispatch personnel.

main outcome measures1-day and 30-day mortality.

resultsAmong 93 167 individuals with highest priority ambulances dispatched, 1948 (2.1%) were dead before the ambulance arrived and 19 968 (21.4%) were transported to the hospital under highest priority (median total prehospital time from dispatch to hospital arrival 47 min (25%-75%: 35-60 min); 95th percentile 84 min). Among 18 709 with population data, 1-day mortality was 10.9% (n=2038), and was highest for patients with dyspnoea (20.4%) and lowest for patients with traffic accidents (2.8%). Thirty-day mortality was 18.3% and varied between 36.6% (patients with dyspnoea) and 3.7% (traffic accidents). One-day mortality was not associated with total prehospital time, except for presumed heart conditions, where longer prehospital time was associated with decreased mortality: adjusted OR for >60 min vs 0-30 min was 0.61 (95% CI 0.40 to 0.91). For patients with dyspnoea, OR for >60 min vs 0-30 min was 0.90 (95% CI 0.56 to 1.45), for presumed cerebrovascular conditions OR 1.41 (95% CI 0.53 to 3.78), for other presumed medical conditions OR 0.84 (95% CI 0.70 to 1.02), for traffic accidents OR 0.65 (95% CI 0.29 to 1.48) and for other accidents OR 0.84 (95% CI 0.47 to 1.51). Similar findings were found for 30-day mortality.

conclusionsIn this study, where time from emergency dispatch to hospital arrival mainly was <80 min, there was no overall relation between this prehospital time measure and mortality.

Indexed as

RegistriesTriageAdultAmbulancesDenmarkEmergenciesEmergency Medical DispatchFemaleHumansMaleMiddle AgedRetrospective StudiesSurvival Rateaccident & emergency medicineambulancecardiologyepidemiologyprehospital medicine

Identifiers

PMID31753864
PMCPMC6886969

What OpenQuestion holds

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LicenceCC BY-NC
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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.