SynthesisDiabetes & metabolic syndrome
Diabetes mellitus is associated with increased mortality and severity of disease in COVID-19 pneumonia - A systematic review, meta-analysis, and meta-regression.
Synthesis in Diabetes & metabolic syndrome. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 506 papers, 14 of them syntheses that pooled it.
What it found
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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
506 citing papers in PubMed, 14 syntheses or guidelines pooled it, 968 citations in OpenAlex.
- Mortality Assessment in Patients with Cardiovascular Disease and COVID-19: A Systematic Review and Meta-Analysis.International journal of molecular sciences · 2026Pooled it
- Pooled it
- Risk Factors Associated with Severity and Death from COVID-19 in Iran: A Systematic Review and Meta-Analysis Study.Journal of intensive care medicine · 2023Pooled it
- Pooled it
- Electrolyte imbalances as poor prognostic markers in COVID-19: a systemic review and meta-analysis.Journal of endocrinological investigation · 2023Pooled it
- Is metformin use associated with low mortality in patients with type 2 diabetes mellitus hospitalized for COVID-19? a multivariable and propensity score-adjusted meta-analysis.PloS one · 2023 · on this mapPooled it
- Risk for newly diagnosed diabetes after COVID-19: a systematic review and meta-analysis.BMC medicine · 2022Pooled it
- Maximising the health impacts of free advice services in the UK: A mixed methods systematic review.Health & social care in the community · 2022Pooled it
- Impact of cancer diagnoses on the outcomes of patients with COVID-19: a systematic review and meta-analysis.BMJ open · 2022Pooled it
- Antibody response following SARS-CoV-2 vaccination among patients with type 2 diabetes mellitus: A systematic review.Diabetes & metabolic syndrome · 2022Pooled it
- Dipeptidyl peptidase-4 (DPP-IV) inhibitor was associated with mortality reduction in COVID-19 - A systematic review and meta-analysis.Primary care diabetes · 2022Pooled it
- Effect of colchicine on mortality in patients with COVID-19 - A systematic review and meta-analysis.Diabetes & metabolic syndrome · 2022Pooled it
- Association Between Anti-diabetic Agents and Clinical Outcomes of COVID-19 in Patients with Diabetes: A Systematic Review and Meta-Analysis.Archives of medical research · 2022Pooled it
- Prevalence and impact of diabetes in hospitalized COVID-19 patients: A systematic review and meta-analysis.Journal of diabetes · 2022Pooled it
- "What Can I Eat?" Healthy Choices for American Indian and Alaska Native Adults With Type 2 Diabetes: Outcomes From a Randomized Waitlist-Controlled Trial of a Diabetes Nutrition Education Program.Journal of nutrition education and behavior · 2025Trial
- A Nonrandomized Trial of the Effects of Passive Simulated Jogging on Short-Term Heart Rate Variability in Type 2 Diabetic Subjects.Journal of diabetes research · 2023Trial
- β-Cell Dysfunction in COVID-19 and Post-COVID Syndrome: Molecular Mechanisms Linking Inflammation, Oxidative Stress, and Insulin Secretion.International journal of molecular sciences · 2026Review
- Baseline cohort profile: clinical and molecular characterisation of SARS-CoV-2 infected patients recruited into a longitudinal COVID-19 cohort study (COVGEN) in Malaysia.BMC infectious diseases · 2026Article
- Diabetes affects the composition of the respiratory tract microbiome and transcriptome in patients with viral pneumonia.Microbiology spectrum · 2026Article
- Effect of Baseline HbA1c and Inpatient Glycemic Control on Mortality and Organ Dysfunction among Patients with Diabetes Mellitus Hospitalized for COVID-19: A Multicenter Retrospective Cohort Study.Journal of the ASEAN Federation of Endocrine Societies · 2026Article
446 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
aimsDiabetes Mellitus (DM) is chronic conditions with devastating multi-systemic complication and may be associated with severe form of Coronavirus Disease 2019 (COVID-19). We conducted a systematic review and meta-analysis in order to investigate the association between DM and poor outcome in patients with COVID-19 pneumonia.
methodsSystematic literature search was performed from several electronic databases on subjects that assess DM and outcome in COVID-19 pneumonia. The outcome of interest was composite poor outcome, including mortality, severe COVID-19, acute respiratory distress syndrome (ARDS), need for intensive care unit (ICU) care, and disease progression.
resultsThere were a total of 6452 patients from 30 studies. Meta-analysis showed that DM was associated with composite poor outcome (RR 2.38 [1.88, 3.03], p < 0.001; I
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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.