Evidence map›Paper›PMID 32222789›Full record

ArticleEuropean journal of trauma and emergency surgery : official publication of the European Trauma Society2021

Severe trauma patient volume was associated with decreased mortality.

Makoto Aoki, Toshikazu Abe, Daizoh Saitoh, Shuichi Hagiwara, Kiyohiro Oshima

Abstract read
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In one paragraph

Article in European journal of trauma and emergency surgery : official publication of the European Trauma Society, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 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.

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

8 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Transport and destination hospital for patients with suspected multiple and/or severe injuries - a systematic review and clinical practice guideline update.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2026
    Pooled it
  2. Observational
  3. Impact of physician-staffed ground emergency medical services-administered pre-hospital trauma care on in-hospital survival outcomes in Japan.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2024
    Article
  4. Article
  5. Process times of severely injured patients in the emergency room are associated with patient volume: a registry-based analysis.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2022
    Article
  6. Article
  7. Observational
  8. 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

5 authors.

Makoto AokiDepartment of Emergency Medicine, Gunma University Graduate School of Medicine, Maebashi, Japan. aokimakoto@gunma-u.ac.jp.
Toshikazu AbeDepartment of General Medicine, Juntendo University, Tokyo, Japan.
Daizoh SaitohDepartment of Traumatology and Emergency Medicine, National Defense Medical College, Tokorozawa, Japan.
Shuichi HagiwaraDepartment of Emergency Medicine, Gunma University Graduate School of Medicine, Maebashi, Japan.
Kiyohiro OshimaDepartment of Emergency Medicine, Gunma University Graduate School of Medicine, Maebashi, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe relationship between the severe trauma patient volume and outcomes is still being debated. The aim of this study was to evaluate the relationship between severe trauma patient volume, hospital mortality, and door-to-definitive treatment time.

methodsThis was a retrospective cohort study that used recorded data from the Japan Trauma Data Bank. We included severe trauma patients who had an Injury Severity Score greater than 16. Hospitals were categorized according to their annual severe trauma patient volume: low volume, 1-49 (reference), medium volume, 50-99, and high volume, ≥ 100]. The association of volume categories with in-hospital mortality was evaluated by use of a mixed-effects model adjusted for patient demographics and trauma severity. Additionally, the association of volume categories with in-hospital mortality among subgroups and with door-to-definitive treatment time were also evaluated.

resultsA total of 74,957 severe trauma patients from 213 hospitals were analyzed. In-hospital mortality was 15.7%, 15.2%, and 12.8% in the low volume, medium volume, and high volume groups, respectively. High volume was associated with reduced in-hospital mortality compared to low volume (odds ratio = 0.757, 95% confidence interval = 0.626-0.916). However, medium volume was not associated with reduced in-hospital mortality. Among subgroups, high volume was associated with reduced in-hospital mortality only in the probability of survival ≥ 0.5. Door-to-definitive treatment time was decreased in high volume, however, high volume was not associated with reduced in-hospital mortality among the patients who underwent definitive treatment and the patients whose ps < 0.5.

conclusionsSevere trauma patient volume was associated with decreased mortality by decreasing preventable trauma death.

Indexed as

Retrospective StudiesDatabases, FactualHospital MortalityHumansInjury Severity ScoreOdds RatioHospital volumeMixed effect modelMortalityTrauma

Identifiers

PMID32222789

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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.