Evidence map›Paper›PMID 35272088›Full record

ArticleThe Journal of surgical research2022

Defining Referral Regions for Inpatient Trauma Care: The Utility of a Novel Geographic Definition.

Cheryl K Zogg, Robert D Becher, Michael K Dalton, Sameer A Hirji, Kimberly A Davis, Ali Salim, Zara Cooper, Molly P Jarman

Open access · greenAbstract read
In one paragraph

Article in The Journal of surgical research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
1.0field-weighted citation impact, top 26% 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

2 citing papers in PubMed, 4 citations in OpenAlex.

  1. Article
  2. 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

8 authors at 2 institutions in 1 country.

Cheryl K ZoggYale School of Medicine, New Haven, Connecticut; Center for Surgery and Public Health, Department of Surgery, Brigham & Women's Hospital, Harvard Medical School, and Harvard TH Chan School of Public Health, Boston, Massachusetts. Electronic address: cheryl.zogg@yale.edu.
Robert D BecherYale School of Medicine, New Haven, Connecticut.
Michael K DaltonCenter for Surgery and Public Health, Department of Surgery, Brigham & Women's Hospital, Harvard Medical School, and Harvard TH Chan School of Public Health, Boston, Massachusetts.
Sameer A HirjiCenter for Surgery and Public Health, Department of Surgery, Brigham & Women's Hospital, Harvard Medical School, and Harvard TH Chan School of Public Health, Boston, Massachusetts.
Kimberly A DavisYale School of Medicine, New Haven, Connecticut.
Ali SalimCenter for Surgery and Public Health, Department of Surgery, Brigham & Women's Hospital, Harvard Medical School, and Harvard TH Chan School of Public Health, Boston, Massachusetts.
Zara CooperCenter for Surgery and Public Health, Department of Surgery, Brigham & Women's Hospital, Harvard Medical School, and Harvard TH Chan School of Public Health, Boston, Massachusetts.
Molly P JarmanCenter for Surgery and Public Health, Department of Surgery, Brigham & Women's Hospital, Harvard Medical School, and Harvard TH Chan School of Public Health, Boston, Massachusetts.
Brigham and Women's Hospital · USYale University · US

Funding

Yale Clinical and Translational Science Award (U Component)UL1TR001863 · NCATS · YALE UNIVERSITY · PI John H. Krystal, LUCILA OHNO-MACHADO · 2016 to 2026
$102.9M
MEDICAL SCIENTIST TRAINING PROGRAMT32GM007205 · NIGMS · YALE UNIVERSITY · PI KAZMIERCZAK, BARBARA I · 1985 to 2019
$42.9M
Medical Scientist Training ProgramT32GM136651 · NIGMS · YALE UNIVERSITY · PI BARBARA I KAZMIERCZAK · 2020 to 2026
$16.5M
The ED.TRAUMA Study: Evaluating the Discordance ofTrauma Readmission And Unanticipated Mortality in the Assessment of hospital qualityF30AG066371 · NIA · YALE UNIVERSITY · PI ZOGG, CHERYL K · 2019 to 2022
$163k
NCATS NIH HHS UL1 TR001863NIA NIH HHS F30 AG066371NIGMS NIH HHS T32 GM007205NIGMS NIH HHS T32 GM136651
6 · The paper itself

Abstract

introductionGeographic variation is an inherent feature of the US health system. Despite efforts to account for geographic variation in trauma system strengthening, it remains unclear how trauma "regions" should be defined. The objective of this study is to evaluate the utility of a novel definition of Trauma Referral Regions (TRR) for assessing geographic variation in inpatient trauma across the age span of hospitalized trauma patients.

methodsUsing 2016-2017 State Inpatient Databases, we assessed the extent of geographic variability in three common metrics of hospital use (localization index, market share index, net patient flow) among TRRs and, as a comparison, trauma regions alternatively defined based on Hospital Referral Regions, Hospital Service Areas, and counties.

resultsA total of 860,593 admissions from 102 TRRs, 127 Hospital Referral Regions, 884 Hospital Service Areas, and 583 counties were included. Consistent with expectations for distinct trauma regions, TRR presented with high average localization indices (mean [standard deviation]: 83.4 [11.7%]), low market share indices (mean [standard deviation]: 11.9 [7.0%]), and net patient flows close to 1.00. Similar results were found among stratified pediatric, adult, and older adult patients. Associations between TRRs and variations in important demographic features (e.g., travel time by road to the nearest Level I or II Trauma Center) suggest that while indicative of standalone trauma regions, TRRs are also able to simultaneously capture critical variations in regional trauma care.

conclusionsTRRs offer a standalone set of geographic regions with minimal variation in common metrics of hospital use, minimal geographic clustering, and preserved associations with important demographic factors. They provide a needed, valid means of assessing geographic variation among trauma systems.

Indexed as

InpatientsReferral and ConsultationAgedChildHospitalizationHospitalsHumansTrauma CentersGeographic variationGeographyMappingReferral regionTrauma

Identifiers

PMID35272088
PMCPMC9038698
OpenAlexW4221085846

What OpenQuestion holds

Textmetadata
LicenceTDM
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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.