SynthesisFrontiers in public health2020
Comparison of Epidemiological Variations in COVID-19 Patients Inside and Outside of China-A Meta-Analysis.
Synthesis in Frontiers in public health, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 3 of them syntheses that pooled it.
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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.
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Who cites it
23 citing papers in PubMed, 3 syntheses or guidelines pooled it.
- Diabetes is most important cause for mortality in COVID-19 hospitalized patients: Systematic review and meta-analysis.Reviews in endocrine & metabolic disorders · 2021Pooled it
- Systematic Review and Meta-Analysis of Sex-Specific COVID-19 Clinical Outcomes.Frontiers in medicine · 2020Pooled it
- Immunopathological Changes in SARS-CoV-2 Critical and Non-critical Pneumonia Patients: A Systematic Review to Determine the Cause of Co-infection.Frontiers in public health · 2020Pooled it
- Trends in Two-Week Prevalence of Fever and Diarrhea Among Infants and Young Children in Rural - China, 2016-2025.China CDC weekly · 2026Article
- Characteristics of symptoms among outpatients following the discontinuation of the dynamic zero-COVID-19 policy in China: insights from an online nationwide cross-sectional survey in 2022.Journal of thoracic disease · 2025Article
- Exploration of spatiotemporal heterogeneity and socio-demographic determinants on COVID-19 incidence rates in Sarawak, Malaysia.BMC public health · 2023Article
- Did Ghana Do Enough? A Scientometric Analysis of COVID-19 Research Output from Ghana within the African Context.Diseases (Basel, Switzerland) · 2023Review
- Assessing Associations Between COVID-19 Symptomology and Adverse Outcomes After Piloting Crowdsourced Data Collection: Cross-sectional Survey Study.JMIR formative research · 2022Article
- Assessing the impact of long-term exposure to nine outdoor air pollutants on COVID-19 spatial spread and related mortality in 107 Italian provinces.Scientific reports · 2022Article
- Article
- Prognostic Factors for Post-COVID-19 Syndrome: A Systematic Review and Meta-Analysis.Journal of clinical medicine · 2022Review
- Variation in global COVID-19 symptoms by geography and by chronic disease: A global survey using the COVID-19 Symptom Mapper.EClinicalMedicine · 2022Article
- Clinical, demographic, and laboratory characteristics of COVID -19 infection and risk of in-hospital mortality. A single center 4.Caspian journal of internal medicine · 2022Article
- COVID-19 assessment in family practice-A clinical decision rule based on self-rated symptoms and contact history.NPJ primary care respiratory medicine · 2021Article
- Different variants of pandemic and prevention strategies: A prioritizing framework in fuzzy environment.Results in physics · 2021Article
- Article
- Clinical and epidemiological characteristics of 646 hospitalised SARS-Cov-2 positive patients in Rivers State Nigeria: a prospective observational study.The Pan African medical journal · 2021Observational
- Morbidity and mortality trends of Covid 19 in top 10 countries.The Indian journal of tuberculosis · 2020Review
- Review
- Metabolic Syndrome and COVID 19: Endocrine-Immune-Vascular Interactions Shapes Clinical Course.Endocrinology · 2020Review
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The objective of this study is to compare the epidemiological variations in COVID-19 patients reported in studies from inside and outside of China. We selected COVID-19 observational studies from eight countries, including, China, Italy, Australia, Canada, Korea, Taiwan, Singapore, and the USA, comprising a total of 13 studies and performed a meta-analysis for age, gender, fatality rate, and clinical symptoms of fever, cough, shortness of breath, and diarrhea. The meta-analysis shows that there are differences in symptoms and other characteristics reported by the patients of COVID-19 inside and outside China. Patients in China have a higher proportion of fever, cough, and shortness of breath as compared to patients outside of China. However, we found the opposite results for the gastrointestinal symptoms such as Diarrhea. Patients outside of China have a significantly higher proportion of Diarrhea as compared to patients within China. We also observed gender disparity among our studies, with the male population being more susceptible than the female population. Moreover, the analysis suggests that the fatality rate in China is relatively lower as compared to the fatality rate in other countries. These findings also suggest that the clinical symptoms of COVID-19 should not be generalized to fever, shortness of breath, and cough only but other symptoms such as diarrhea are also prevalent in patients with COVID-19.
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