SynthesisObesity research & clinical practice
Impact of obesity on hospitalizations and mortality, due to COVID-19: A systematic review.
Synthesis in Obesity research & clinical practice. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers, 6 of them syntheses that pooled 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.
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.
Who cites it
60 citing papers in PubMed, 6 syntheses or guidelines pooled it, 123 citations in OpenAlex.
- The effects of consuming a Mediterranean style diet on associated COVID-19 severity biomarkers in obese/overweight adults: A systematic review.Nutrition and health · 2022Pooled it
- Recent Advance Analysis of Recovery in Hospitalized People with COVID-19: A Systematic Review.International journal of environmental research and public health · 2022Pooled it
- The negative impact of obesity on the occurrence and prognosis of the 2019 novel coronavirus (COVID-19) disease: a systematic review and meta-analysis.Eating and weight disorders : EWD · 2022Pooled it
- The impact of behavioural risk factors on communicable diseases: a systematic review of reviews.BMC public health · 2021Pooled it
- Nutritional determinants and COVID-19 outcomes of older patients with COVID-19: A systematic review.Archives of gerontology and geriatricsPooled it
- COVID-19 infection and body weight: A deleterious liaison in a J-curve relationship.Obesity research & clinical practicePooled it
- An Ecological Study on the Mortality Impact of the COVID-19 Pandemic According to Country Development Status and Pandemic Years.Epidemiologia (Basel, Switzerland) · 2026Article
- Effect of Preinfection Health Status on COVID-19 Severity and Cognitive Function.Brain and behavior · 2025Observational
- Post-COVID-19: Hematological Factors Changes in Patients at Three-time Intervals.Current medicinal chemistry · 2025Article
- Body mass index and critical care outcomes in hospitalized COVID-19 patients-A national cohort study.PloS one · 2025Article
- Excess Mortality and its Determinants During the COVID-19 Pandemic in 21 Countries: An Ecological Study from the C-MOR Project, 2020 and 2021.Journal of epidemiology and global health · 2024Article
- Malnutrition is associated with severe outcome in elderly patients hospitalised with COVID-19.Scientific reports · 2024Article
- Nutritional and Inflammatory Markers Associated with SARS-CoV-2 Infection in the Elderly.International journal of molecular sciences · 2024Article
- Retrospective study of factors associated with the clinical severity of covid-19 in older adults in Minas Gerais: structural equation modeling.Sao Paulo medical journal = Revista paulista de medicina · 2024Article
- The impact of multimorbidity on severe COVID-19 outcomes in community and congregate settings.Dialogues in health · 2023Article
- Exploring the Network between Adipocytokines and Inflammatory Response in SARS-CoV-2 Infection: A Scoping Review.Nutrients · 2023Article
- Body mass index and sex differences for mortality in hospitalized COVID-19 patients: a path analysis using a brazilian national database.BMC public health · 2023Observational
- Article
- Reduction in Serum Magnesium Levels and Renal Function Are Associated with Increased Mortality in Obese COVID-19 Patients.Nutrients · 2022Article
- Changes in body weight, health behaviors, and mental health in adults with obesity during the COVID-19 pandemic.Obesity (Silver Spring, Md.) · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 1 institution in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The aim of the current review was to assess whether there was an association between obesity and higher levels of hospitalization, poor outcomes and mortality due to the disease of novel coronavirus (COVID-19). METHODOLOGY: A systematic review of articles on the novel coronavirus, containing information on obesity and its association with COVID-19 morbidity and mortality. In the bibliographic research, four databases were used, with the terms ['COVID-19'] AND ['hospitalization'] AND ['obesity'] AND ['mortality']. Studies published from 12/01/2019 until 05/01/2020 were included. The research contains inclusive criteria targeting studies of humans adults infected by Sars-Cov-2, with or without comorbidities. This research was selected from publications in Spanish and English languages.
results96 articles were identified, 15 being presented in two databases. Twenty articles were included, with a population total estimated from 1 to 7671 patients, with a prevalence of obesity ranging from 13.3% to 68.6%. The association of obesity and mortality has been observed in at least 4 studies, that 85.3% of the population was hospitalized. Among 19 of the 20 studies, more severe forms of the disease were observed and in 14 of them, higher rates of complications among obese people infected with the new coronavirus. Limitation differences in the definition of obesity was observed among publications, of which obesity was considered from a body mass index >25 kg/m².
conclusionsIn the current review, obesity and overweight were represented an unfavorable factor for infection of novel coronavirus, where the higher the BMI the worse the outcomes. This occurred by worsening the infection itself, as well as increasing the prevalence of hospitalizations, worst outcomes and greater lethality; especially when co-occurring with other chronic conditions and in the elderly as well. Given this evidence, greater attention is suggested to the obese and overweight population in the face of the current pandemic.
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Registered trials
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.