Evidence map›Paper›PMID 34370056›Full record

ArticleWorld journal of surgery2021

The Impact of Obesity on Renal Trauma Outcome: An Analysis of the National Trauma Data Bank from 2013 to 2016.

Nizar Hakam, Behnam Nabavizadeh, Michael J Sadighian, Jordan Holler, Patrick Shibley, Kevin D Li, Patrick Low, Gregory Amend, Deborah M Stein, Benjamin N Breyer

Open access · bronzeAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in World journal of surgery, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
1.0field-weighted citation impact, top 23% 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

4 citing papers in PubMed, 8 citations in OpenAlex.

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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

10 authors at 2 institutions in 1 country.

Nizar HakamDepartment of Urology, University of California San Francisco, San Francisco, CA, USA.
Behnam NabavizadehDepartment of Urology, University of California San Francisco, San Francisco, CA, USA.
Michael J SadighianDepartment of Urology, University of California San Francisco, San Francisco, CA, USA.
Jordan HollerDepartment of Urology, University of California San Francisco, San Francisco, CA, USA.
Patrick ShibleyDepartment of Urology, University of California San Francisco, San Francisco, CA, USA.
Kevin D LiDepartment of Urology, University of California San Francisco, San Francisco, CA, USA.
Patrick LowDepartment of Urology, University of California San Francisco, San Francisco, CA, USA.
Gregory AmendDepartment of Urology, University of California San Francisco, San Francisco, CA, USA.
Deborah M SteinDepartment of Surgery, University of California San Francisco, San Francisco, CA, USA.
Benjamin N BreyerDepartment of Urology, University of California San Francisco, San Francisco, CA, USA. Benjamin.Breyer@ucsf.edu.
University of California, San Francisco · USUniversity of San Francisco · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe obesity paradox has been recently demonstrated in trauma patients, where improved survival was associated with overweight and obese patients compared to patients with normal weight, despite increased morbidity. Little is known whether this effect is mediated by lower injury severity. We aim to explore the association between body mass index (BMI) and renal trauma injury grade, morbidity, and in-hospital mortality.

methodsA retrospective cohort of adults with renal trauma was conducted using 2013-2016 National Trauma Data Bank. Multiple regression analyses were used to assess outcomes of interest across BMI categories with normal weight as reference, while adjusting for relevant covariates including kidney injury grade.

resultsWe analyzed 15181 renal injuries. Increasing BMI above normal progressively decreased the risk of high-grade renal trauma (HGRT). Subgroup analysis showed that this relationship was maintained in blunt injury, but there was no association in penetrating injury. Overweight (OR 1.02, CI 0.83-1.25, p = 0.841), class I (OR 0.92, CI 0.71-1.19, p = 0.524), and class II (OR 1.38, CI 0.99-1.91, p = 0.053) obesity were not protective against mortality, whereas class III obesity (OR 1.46, CI 1.03-2.06, p = 0.034) increased mortality odds. Increasing BMI by category was associated with a stepwise increase in odds of acute kidney injury, cardiovascular events, total hospital length of stay (LOS), intensive care unit LOS, and ventilator days.

conclusionsIncreasing BMI was associated with decreased risk of HGRT in blunt trauma. Overweight and obesity were associated with increased morbidity but not with a protective effect on mortality. The obesity paradox does not exist in kidney trauma when injury grade is accounted for.

Indexed as

KidneyObesityAdultBody Mass IndexHumansInjury Severity ScoreLength of StayRetrospective Studies

Identifiers

PMID34370056
PMCPMC8351221
OpenAlexW3191578904

What OpenQuestion holds

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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.