Cited by 35COVID-19 Clinical Research StudiesObesity, Physical Activity, DietSARS-CoV-2 and COVID-19 Research

Excess body weight is an independent risk factor for severe forms of COVID-19

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Pietri, Léa, Giorgi, Roch, Bégu, Audrey, Lojou, Manon, Koubi, Marie, Cauchois, Raphael, Grangeot, Rachel, Dubois, Noémie +3 more·2021·Metabolism

Abstract

Background and aims Few studies distinguished the independent role of overweight/obesity or their associated-comorbidities in the evolution towards severe forms of COVID-19. Obesity as a unifying risk factor for severe COVID-19 is an emerging hypothesis. The aim of this study was to evaluate whether excessive body weight per se, was a risk factor for developing a severe form of COVID-19.Patients and methods We included 131 patients hospitalized for COVID-19 pneumonia in a single center of the internal medicine department in Marseille, France. We recorded anthropometric and metabolic parameters such as fasting glycaemia, insulinemia, HOMA-IR, lipids, and all clinical criteria linked to SARS-CoV-2 infection at the admission. Excess body weight was defined by a BMI ≥ 25 kg/m 2. The occurrence of a serious event was defined as a high-debit oxygen requirement over 6 L/min, admission into the intensive care unit, or death.Results Among 113 patients, two thirds (n = 76, 67%) had an excess body weight. The number of serious events was significantly higher in excess body weight patients compared to normal weight patients (respectively 25% vs 8%, p = 0.03) although excess body weight patients were younger (respectively 63.6 vs 70.3 years old, p = 0.01). In multivariate analyses, the excess body weight status was the only predictor for developing a serious event linked to SARS-CoV-2 infection, with an odds ratio at 5.6 (95% CI: 1.30-23.96; p = 0.02), independently of previous obesity associated comorbidities. There was a trend towards a positive association between the BMI (normal weight, overweight and obesity) and the risk of serious events linked to COVID-19, with a marked increase from 8.1% to 20% and 30.6% respectively (p = 0.05).Conclusion Excess body weight was significantly associated with severe forms of the disease, independently of its classical associated comorbidities. Physicians and specialists in Public Health must be sensitized to better protect people with an excess body weight against SARS-CoV-2 infection.

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Crossref · 10.1016/j.metabol.2021.154703

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Authors
Pietri, L., Giorgi, R., Bégu, A., Lojou, M., Koubi, M., Cauchois, R., Grangeot, R., Dubois, N., Kaplanski, G., Valéro, R., & Béliard, S.
Affiliations
  • Inserm (FR)
  • Hôpital de la Conception (FR)
  • Assistance Publique Hôpitaux de Marseille (FR)
Corresponding author
Béliard, Sophie
Venue
Metabolism
Publisher
Elsevier BV
Published
2021-04
Volume
117
Pages
154703
ISSN
0026-0495 (ISSN-L)
OpenAlex
W3120503333
Cited by
35
References
22
Citations by year
2026: 1 · 2025: 1 · 2024: 6 · 2023: 9 · 2022: 14 · 2021: 4
FWCI
2.61
Type
journal article
Language
en
Open access
Locations
  • Metabolism (acceptedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • HAL AMU (submittedVersion)
Topics
  • Health Sciences › Medicine › Infectious Diseases › COVID-19 Clinical Research Studies
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Obesity, Physical Activity, Diet
  • Health Sciences › Medicine › Infectious Diseases › SARS-CoV-2 and COVID-19 Research
Keywords
COVID-19 pandemic, obesity, overweight, body mass index, disease severity, risk factors, SARS-CoV-2, COVID-19 pneumonia, insulin resistance, comorbidities, intensive care unit admission, mortality
MeSH terms
COVID-19, SARS-CoV-2, Aged, Aged, 80 and over, Body Weight, Female, France, Hospitalization, Humans, Male, Middle Aged, Obesity, Prognosis, Retrospective Studies, Risk Factors, Severity of Illness Index, Comorbidity, Body Mass Index, Critical Illness, Overweight

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