Letter to the Editor regarding the article: "identifying pre-hospital factors associated with outcome for major trauma patients in a regional trauma network: an exploratory study".

Charlie A Sewalt, Eveline J A Wiegers, Esmee Venema, Hester F Lingsma

Abstract readLetterComment

In one paragraph

Article in Scandinavian journal of trauma, resuscitation and emergency medicine, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it

0cells of the map it votes in

1citing 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

1 citing paper in PubMed.

Longer-term quality of life following major trauma: age only significantly affects outcome after the age of 80 years.Clinical interventions in aging · 2018
Article

4 · The record

Corrections and comments

Comment on
Identifying pre-hospital factors associated with outcome for major trauma patients in a regional trauma network: an exploratory study.2017

5 · Who and what money

Authors and funding

4 authors.

Charlie A SewaltCenter for Medical Decision Making, Department of Public Health, Erasmus University Medical Center, P.O. Box 2040, 3000, CA, Rotterdam, The Netherlands. c.sewalt@erasmusmc.nl.

Eveline J A WiegersCenter for Medical Decision Making, Department of Public Health, Erasmus University Medical Center, P.O. Box 2040, 3000, CA, Rotterdam, The Netherlands.

Esmee VenemaCenter for Medical Decision Making, Department of Public Health, Erasmus University Medical Center, P.O. Box 2040, 3000, CA, Rotterdam, The Netherlands.

Hester F LingsmaCenter for Medical Decision Making, Department of Public Health, Erasmus University Medical Center, P.O. Box 2040, 3000, CA, Rotterdam, The Netherlands.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The aim of this Letter to the Editor was to report some methodological shortcomings in a recently published article. Issues regarding missing values and overfitting are mentioned. First, Complete Case (CC) analysis was used instead of an imputation method. Second, there was a high chance of overfitting and lack of model validation. In conclusion, the results of this study should be interpret with caution and further research is necessary.

Indexed as

HospitalsHumansMethodologyPrediction modellingPredictive factors

Identifiers

PMID29178926

DOI10.1186/s13049-017-0454-1

PMCPMC5702121

What OpenQuestion holds

Textmetadata

LicenceCC BY

Read underepoch 390

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.