Evidence map›Paper›PMID 19783323›Full record

ArticleAnnals of emergency medicine2010

Emergency medical services intervals and survival in trauma: assessment of the "golden hour" in a North American prospective cohort.

Craig D Newgard, Robert H Schmicker, Jerris R Hedges, John P Trickett, Daniel P Davis, Eileen M Bulger, Tom P Aufderheide, Joseph P Minei, J Steven Hata, K Dean Gubler and 5 more

Registry-linked trialAbstract readMulticenter Study
In one paragraph

Article in Annals of emergency medicine, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02440373 (Plasma Cytochrome c as Biomarker of Traumatic Injury and Predictor of Outcome), which is not on this map. Cited by 113 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
113citing papers in PubMed, 2 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.

NCT02440373 completednot on this mapstarted 2014, after this paper: background citation

Plasma Cytochrome c as Biomarker of Traumatic Injury and Predictor of Outcome

TypeobservationalSponsorWake Forest University Health SciencesRan2014 to 2017Enrolled12ConditionsTrauma, Blunt Injury, Blunt Trauma, Accident
3 · Its place in the literature

Who cites it

113 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Helicopter emergency medical services for adults with major trauma.The Cochrane database of systematic reviews · 2015
    Pooled it
  3. Trial
  4. Article
  5. Observational
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  9. Observational
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  11. Article
  12. Disparities in Access to Trauma Care in Canada: A Geospatial Analysis of Census Data.Annals of surgery open : perspectives of surgical history, education, and clinical approaches · 2025
    Article
  13. Article
  14. Article
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53 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

15 authors.

Craig D NewgardCenter for Policy and Research in Emergency Medicine, Department of Emergency Medicine, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239-3098, USA. newgardc@ohsu.edu
Robert H Schmicker
Jerris R Hedges
John P Trickett
Daniel P Davis
Eileen M Bulger
Tom P Aufderheide
Joseph P Minei
J Steven Hata
K Dean Gubler
Todd B Brown
Jean-Denis Yelle
Berit Bardarson
Graham Nichol
Resuscitation Outcomes Consortium Investigators

Funding

Resuscitation Outcomes Consortium (ROC) Data Coordinating CenterU01HL077863 · NHLBI · UNIVERSITY OF WASHINGTON · PI MAY, SUSANNE · 2004 to 2015
$125.1M
Resuscitation Outcomes Consortium (ROC) Regional Clinical Center-PittsburghU01HL077871 · NHLBI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI CALLAWAY, CLIFTON W. · 2004 to 2015
$4.0M
Southeastern Resucitation Research CenterU01HL077881 · NHLBI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI KERBY, JEFFREY D, WANG, HENRY E. · 2004 to 2015
$3.9M
Resuscitation Outcomes Consortium (ROC) Regional Clinical Center-PortlandU01HL077873 · NHLBI · OREGON HEALTH & SCIENCE UNIVERSITY · PI DAYA, MOHAMUD RAMZANALI · 2004 to 2015
$3.9M
Resuscitation Outcomes Consortium (ROC) Regional Clinical Centers-MilwaukeeU01HL077866 · NHLBI · MEDICAL COLLEGE OF WISCONSIN · PI AUFDERHEIDE, TOM PAUL · 2004 to 2015
$3.0M
Seattle-King County Center for Resuscitation ResearchU01HL077867 · NHLBI · UNIVERSITY OF WASHINGTON · PI KUDENCHUK, PETER JAMES · 2004 to 2015
$3.0M
The UCSD/San Diego Resuscitation Research CenterU01HL077908 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI VILKE, GARY · 2004 to 2015
$2.9M
Resuscitation Outcomes Consortium (ROC) Regional Clinical Center-OTTAWA-OPALS-BCRU01HL077885 · NHLBI · OTTAWA HOSPITAL RESEARCH INSTITUTE · PI STIELL, IAN G. · 2004 to 2015
$2.4M
Resuscitation Outcomes Consortium (ROC) Regional Clinical Center-Toronto RegionalU01HL077872 · NHLBI · ST. MICHAEL'S HOSPITAL · PI MORRISON, LAURIE · 2004 to 2015
$1.9M
CIHRNHLBI NIH HHS 5U01 HL077863NHLBI NIH HHS HL077866NHLBI NIH HHS HL077867NHLBI NIH HHS HL077871NHLBI NIH HHS HL077872NHLBI NIH HHS HL077873NHLBI NIH HHS HL077877NHLBI NIH HHS HL077881NHLBI NIH HHS HL077885NHLBI NIH HHS HL077908NHLBI NIH HHS U01 HL077863NHLBI NIH HHS U01 HL077866NHLBI NIH HHS U01 HL077867NHLBI NIH HHS U01 HL077871NHLBI NIH HHS U01 HL077872NHLBI NIH HHS U01 HL077873NHLBI NIH HHS U01 HL077881NHLBI NIH HHS U01 HL077885NHLBI NIH HHS U01 HL077908
6 · The paper itself

Abstract

STUDY

objectiveThe first hour after the onset of out-of-hospital traumatic injury is referred to as the "golden hour," yet the relationship between time and outcome remains unclear. We evaluate the association between emergency medical services (EMS) intervals and mortality among trauma patients with field-based physiologic abnormality.

methodsThis was a secondary analysis of an out-of-hospital, prospective cohort registry of adult (aged > or =15 years) trauma patients transported by 146 EMS agencies to 51 Level I and II trauma hospitals in 10 sites across North America from December 1, 2005, through March 31, 2007. Inclusion criteria were systolic blood pressure less than or equal to 90 mm Hg, respiratory rate less than 10 or greater than 29 breaths/min, Glasgow Coma Scale score less than or equal to 12, or advanced airway intervention. The outcome was in-hospital mortality. We evaluated EMS intervals (activation, response, on-scene, transport, and total time) with logistic regression and 2-step instrumental variable models, adjusted for field-based confounders.

resultsThere were 3,656 trauma patients available for analysis, of whom 806 (22.0%) died. In multivariable analyses, there was no significant association between time and mortality for any EMS interval: activation (odds ratio [OR] 1.00; 95% confidence interval [CI] 0.95 to 1.05), response (OR 1.00; 95% CI 9.97 to 1.04), on-scene (OR 1.00; 95% CI 0.99 to 1.01), transport (OR 1.00; 95% CI 0.98 to 1.01), or total EMS time (OR 1.00; 95% CI 0.99 to 1.01). Subgroup and instrumental variable analyses did not qualitatively change these findings.

conclusionIn this North American sample, there was no association between EMS intervals and mortality among injured patients with physiologic abnormality in the field.

Indexed as

AdultCohort StudiesFemaleHumansLogistic ModelsMaleMiddle AgedMultivariate AnalysisNorth AmericaProspective StudiesTime FactorsTransportation of PatientsTrauma CentersTreatment OutcomeWounds and InjuriesYoung Adult

Identifiers

PMID19783323
PMCPMC3008652

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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.