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The association between bmi and 90-day mortality in patients with and without diabetes seeking care at the emergency department

Wändell, Per LU ; Carlsson, Axel C. ; Larsson, Anders ; Melander, Olle LU orcid ; Wessman, Torgny LU ; Äarnlöv, Johan and Ruge, Toralph LU (2021) In Upsala Journal of Medical Sciences 126(1).
Abstract

Background: The impact of body mass index (BMI) on mortality varies with age and disease states. The aim of this research study was to analyse the associations between BMI categories and short- and long-term mortality in patients with or without diabetes seeking care at the emergency department (ED) with acute dyspnoea. Population and methods: Patients aged ≥18 years at ED during daytime on weekdays from March 2013 to July 2018 were included. Participants were triaged according to the Medical Emergency Triage and Treatment System-Adult score (METTS-A), and blood samples were collected. Totally, 1,710 patients were enrolled, with missing values in 113, leaving 1,597 patients, 291 with diabetes and 1,306 without diabetes. The association... (More)

Background: The impact of body mass index (BMI) on mortality varies with age and disease states. The aim of this research study was to analyse the associations between BMI categories and short- and long-term mortality in patients with or without diabetes seeking care at the emergency department (ED) with acute dyspnoea. Population and methods: Patients aged ≥18 years at ED during daytime on weekdays from March 2013 to July 2018 were included. Participants were triaged according to the Medical Emergency Triage and Treatment System-Adult score (METTS-A), and blood samples were collected. Totally, 1,710 patients were enrolled, with missing values in 113, leaving 1,597 patients, 291 with diabetes and 1,306 without diabetes. The association between BMI and short-term (90-day) and long-term (mean follow-up time 2.1 years) mortality was estimated by Cox regression with normal BMI (18.5-24.9) as referent category, with adjustment for age, sex, METTS-A scoring, glomerular filtration rate, smoking habits and cardiovascular comorbidity in a fully adjusted model. The Bonferroni correction was also used. Results: Regarding long-term mortality, patients with diabetes and BMI category ≥30 kg/m2 had a fully adjusted Hazard Ratio (HR) of 0.40 (95% confidence interval [CI]: 0.23-0.69), significant after the Bonferroni correction. Amongst patients without diabetes, those with underweight had an increased risk but only of borderline significance, whilst risks in those with overweight or obesity did not differ from reference. Regarding short-term mortality, risks did not differ from reference amongst patients with or without diabetes. Conclusions: We found divergent long-term mortality risks in patients with and without diabetes, with lower risk in obese patients (BMI ≥ 30 kg/m2) with diabetes, but no increased risk for patients without diabetes and overweight (BMI: 25-29.9 kg/m2) and obesity.

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Please use this url to cite or link to this publication:
author
; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
BMI, Diabetes, Emergency department, Mortality, Triage level
in
Upsala Journal of Medical Sciences
volume
126
issue
1
article number
e7590
publisher
Taylor & Francis
external identifiers
  • scopus:85118209183
  • pmid:34650780
ISSN
0300-9734
DOI
10.48101/ujms.v126.7590
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2021 Taylor and Francis Ltd. All rights reserved.
id
bc37f1f1-9729-4458-a614-5beebc4bdc44
date added to LUP
2021-11-24 14:57:34
date last changed
2024-04-06 14:09:41
@article{bc37f1f1-9729-4458-a614-5beebc4bdc44,
  abstract     = {{<p>Background: The impact of body mass index (BMI) on mortality varies with age and disease states. The aim of this research study was to analyse the associations between BMI categories and short- and long-term mortality in patients with or without diabetes seeking care at the emergency department (ED) with acute dyspnoea. Population and methods: Patients aged ≥18 years at ED during daytime on weekdays from March 2013 to July 2018 were included. Participants were triaged according to the Medical Emergency Triage and Treatment System-Adult score (METTS-A), and blood samples were collected. Totally, 1,710 patients were enrolled, with missing values in 113, leaving 1,597 patients, 291 with diabetes and 1,306 without diabetes. The association between BMI and short-term (90-day) and long-term (mean follow-up time 2.1 years) mortality was estimated by Cox regression with normal BMI (18.5-24.9) as referent category, with adjustment for age, sex, METTS-A scoring, glomerular filtration rate, smoking habits and cardiovascular comorbidity in a fully adjusted model. The Bonferroni correction was also used. Results: Regarding long-term mortality, patients with diabetes and BMI category ≥30 kg/m2 had a fully adjusted Hazard Ratio (HR) of 0.40 (95% confidence interval [CI]: 0.23-0.69), significant after the Bonferroni correction. Amongst patients without diabetes, those with underweight had an increased risk but only of borderline significance, whilst risks in those with overweight or obesity did not differ from reference. Regarding short-term mortality, risks did not differ from reference amongst patients with or without diabetes. Conclusions: We found divergent long-term mortality risks in patients with and without diabetes, with lower risk in obese patients (BMI ≥ 30 kg/m2) with diabetes, but no increased risk for patients without diabetes and overweight (BMI: 25-29.9 kg/m2) and obesity.</p>}},
  author       = {{Wändell, Per and Carlsson, Axel C. and Larsson, Anders and Melander, Olle and Wessman, Torgny and Äarnlöv, Johan and Ruge, Toralph}},
  issn         = {{0300-9734}},
  keywords     = {{BMI; Diabetes; Emergency department; Mortality; Triage level}},
  language     = {{eng}},
  number       = {{1}},
  publisher    = {{Taylor & Francis}},
  series       = {{Upsala Journal of Medical Sciences}},
  title        = {{The association between bmi and 90-day mortality in patients with and without diabetes seeking care at the emergency department}},
  url          = {{http://dx.doi.org/10.48101/ujms.v126.7590}},
  doi          = {{10.48101/ujms.v126.7590}},
  volume       = {{126}},
  year         = {{2021}},
}