Evidence map›Paper›PMID 33083559›Full record

ArticleTrauma surgery & acute care open2020

Describing the density of high-level trauma centers in the 15 largest US cities.

Anne M Stey, Alexandria Byskosh, Caryn Etkin, Robert Mackersie, Deborah M Stein, Karl Y Bilimoria, Marie L Crandall

Abstract read
In one paragraph

Article in Trauma surgery & acute care open, 2020. 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
–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

2 citing papers in PubMed.

  1. Socioeconomic Disadvantage and Care Proximity Influence Stage at Presentation in Head and Neck Cancer.Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery · 2026
    Article
  2. Review
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

7 authors.

Anne M SteyDepartment of Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA.ORCID 0000-0002-8334-0304
Alexandria ByskoshDepartment of Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA.
Caryn EtkinDepartment of Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA.
Robert MackersieDepartment of Surgery, University of California San Francisco, San Francisco, California, USA.
Deborah M SteinR Adams Cowley Shock Trauma Center, San Francisco, California, USA.
Karl Y BilimoriaDepartment of Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA.
Marie L CrandallDepartment of Surgery, University of Florida College of Medicine - Jacksonville, Jacksonville, Florida, USA.ORCID 0000-0002-6536-3123

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThere has been a proliferation of urban high-level trauma centers. The aim of this study was to describe the density of high-level adult trauma centers in the 15 largest cities in the USA and determine whether density was correlated with urban social determinants of health and violence rates.

methodsThe largest 15 US cities by population were identified. The American College of Surgeons' (ACS) and states' department of health websites were cross-referenced for designated high-level (levels 1 and 2) trauma centers in each city. Trauma centers and associated 20 min drive radius were mapped. High-level trauma centers per square mile and per population were calculated. The distance between high-level trauma centers was calculated. Publicly reported social determinants of health and violence data were tested for correlation with trauma center density.

resultsAmong the 15 largest cities, 14 cities had multiple high-level adult trauma centers. There was a median of one high-level trauma center per every 150 square kilometers with a range of one center per every 39 square kilometers in Philadelphia to one center per596 square kilometers in San Antonio. There was a median of one high-level trauma center per 285 034 people with a range of one center per 175 058 people in Columbus to one center per 870 044 people in San Francisco. The median minimum distance between high-level trauma centers in the 14 cities with multiple centers was 8 kilometers and ranged from 1 kilometer in Houston to 43 kilometers in San Antonio. Social determinants of health, specifically poverty rate and unemployment rate, were highly correlated with violence rates. However, there was no correlation between trauma center density and social determinants of health or violence rates. DISCUSSION: High-level trauma centers density is not correlated with social determinants of health or violence rates. LEVEL OF EVIDENCE: VI. STUDY TYPE: Economic/decision.

Indexed as

systems analysisviolence

Identifiers

PMID33083559
PMCPMC7549441

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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.