SynthesisPloS one2020
Prevalence and predictors of death and severe disease in patients hospitalized due to COVID-19: A comprehensive systematic review and meta-analysis of 77 studies and 38,000 patients.
Synthesis in PloS one, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 130 papers, 13 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
130 citing papers in PubMed, 13 syntheses or guidelines pooled it, 218 citations in OpenAlex.
- COVID-19-related morbidity and mortality in people with multiple long-term conditions: a systematic review and meta-analysis of over 4 million people.Journal of the Royal Society of Medicine · 2024Pooled it
- Prognostic factors for mortality, intensive care unit and hospital admission due to SARS-CoV-2: a systematic review and meta-analysis of cohort studies in Europe.European respiratory review : an official journal of the European Respiratory Society · 2022Pooled it
- Hospitalised versus outpatient COVID-19 patients' background characteristics and comorbidities: A systematic review and meta-analysis.Reviews in medical virology · 2022Pooled it
- Risk factors for mortality in COVID-19 patients in sub-Saharan Africa: A systematic review and meta-analysis.PloS one · 2022Pooled it
- [Health impact of COVID pandemic. SESPAS Report 2022].Gaceta sanitaria · 2022Pooled it
- Hospital readmissions and post-discharge all-cause mortality in COVID-19 recovered patients; A systematic review and meta-analysis.The American journal of emergency medicine · 2022Pooled it
- Pre-existing interstitial lung disease in patients with coronavirus disease 2019: A meta-analysis.International immunopharmacology · 2021Pooled it
- Clinical outcomes in COVID-19 and cirrhosis: a systematic review and meta-analysis of observational studies.BMJ open gastroenterology · 2021Pooled it
- Pre-existing health conditions and severe COVID-19 outcomes: an umbrella review approach and meta-analysis of global evidence.BMC medicine · 2021Pooled it
- Wharton's Jelly Mesenchymal Stem Cell-Derived Extracellular Vesicles Reduce SARS-CoV2-Induced Inflammatory Cytokines Under High Glucose and Uremic Toxin Conditions.Stem cells and development · 2021Pooled it
- International travel-related control measures to contain the COVID-19 pandemic: a rapid review.The Cochrane database of systematic reviews · 2021Pooled it
- Prevalence of comorbidity in Chinese patients with COVID-19: systematic review and meta-analysis of risk factors.BMC infectious diseases · 2021Pooled it
- Active pulmonary tuberculosis and coronavirus disease 2019: A systematic review and meta-analysis.PloS one · 2021Pooled it
- Trial
- Acute and chronic kidney injury following COVID-19 infection and vaccination: a narrative review.European journal of translational myology · 2026Article
- Socioeconomic determinants of COVID-19 incidence in a German rural area.BMC public health · 2026Article
- AI-RiskX: An Explainable Deep Learning Approach for Identifying At-Risk Patients During Pandemics.Bioengineering (Basel, Switzerland) · 2025Article
- Association Between Pre-Existing Conditions and COVID-19 Hospitalization, Intensive Care Services, and Mortality: A Cross-Sectional Analysis of an International Global Health Data Repository.Pathogens (Basel, Switzerland) · 2025Article
- SARS-CoV-2 Infection in Children: Revisiting Host-Virus Interactions Through Post-Infection Immune Profiling.Pathogens (Basel, Switzerland) · 2025Article
- Dissecting clinical features of COVID-19 in a cohort of 21,312 acute care patients.Communications medicine · 2025Article
70 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 2 institutions in 1 country.
Funding
Abstract
introductionProgression of COVID-19 to severe disease and death is insufficiently understood.
objectiveSummarize the prevalence of risk factors and adverse outcomes and determine their associations in COVID-19 patients who were hospitalized.
methodsWe searched Medline, Embase and Web of Science for case-series and observational studies of hospitalized COVID-19 patients through August 31, 2020. Data were analyzed by fixed-effects meta-analysis using Shore's adjusted confidence intervals to address heterogeneity.
resultsSeventy-seven studies comprising 38906 hospitalized patients met inclusion criteria; 21468 from the US-Europe and 9740 from China. Overall prevalence of death [% (95% CI)] from COVID-19 was 20% (18-23%); 23% (19-27%) in the US and Europe and 11% (7-16%) for China. Of those that died, 85% were aged≥60 years, 66% were males, and 66%, 44%, 39%, 37%, and 27% had hypertension, smoking history, diabetes, heart disease, and chronic kidney disease (CKD), respectively. The case fatality risk [%(95% CI)] were 52% (46-60) for heart disease, 51% (43-59) for COPD, 48% (37-63) for chronic kidney disease (CKD), 39% for chronic liver disease (CLD), 28% (23-36%) for hypertension, and 24% (17-33%) for diabetes. Summary relative risk (sRR) of death were higher for age≥60 years [sRR = 3.6; 95% CI: 3.0-4.4], males [1.3; 1.2-1.4], smoking history [1.3; 1.1-1.6], COPD [1.7; 1.4-2.0], hypertension [1.8; 1.6-2.0], diabetes [1.5; 1.4-1.7], heart disease [2.1; 1.8-2.4], CKD [2.5; 2.1-3.0]. The prevalence of hypertension (55%), diabetes (33%), smoking history (23%) and heart disease (17%) among the COVID-19 hospitalized patients in the US were substantially higher than that of the general US population, suggesting increased susceptibility to infection or disease progression for the individuals with comorbidities.
conclusionsPublic health screening for COVID-19 can be prioritized based on risk-groups. Appropriately addressing the modifiable risk factors such as smoking, hypertension, and diabetes could reduce morbidity and mortality due to COVID-19; public messaging can be accordingly adapted.
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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.