ArticleJournal of preventive medicine and hygiene2021
Epidemiological characteristics and outcomes of COVID-19 in asymptomatic versus symptomatic patients.
Article in Journal of preventive medicine and hygiene, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- SARS-CoV-2 in Infants: Clinical Patterns, Laboratory Findings, and Implications for Pediatric Care in Viral Outbreaks.Clinical medicine insights. Pediatrics · 2026Article
- Severe acute respiratory syndrome coronavirus 2 seroprevalence among patients with pulmonary tuberculosis.Revista da Associacao Medica Brasileira (1992) · 2023Article
- Perioperative outcomes in patients with symptomatic versus asymptomatic previous COVID-19 infection undergoing neurosurgical treatment (post-COVID-19 study).Journal of anaesthesiology, clinical pharmacologyArticle
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Authors and funding
6 authors.
Funding
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Abstract
Background: The clinical manifestations of COVID-19 are different, which can be attributed to asymptomatic carriers, acute respiratory disease and pneumonia with different severities. The aim of this study was to compare the epidemiological characteristics and outcomes of COVID-19 in patients with clinical symptoms versus asymptomatic patients. Methods: In this retrospective cohort study, the epidemiological characteristics of two groups of patients, with clinical symptoms (n = 38,630) and without clinical symptoms who were definitive cases of COVID-19 (n = 2,327) were investigated in the southwestern of Iran. Chi-square test was used to evaluate the differences between qualitative variables in the two study groups. Results: Of 40,957 patients with COVID-19, 2,327 (5.68%) were asymptomatic, of whom 1391 (59.77%) were males, 1841 patients (79.11%) had a history of contact with definite or suspected cases of COVID-19. Asymptomatic patients were older than symptomatic cases. Patients with clinical symptoms had higher mortality rate than asymptomatic patients (2.68% in symptomatic patients vs 0% in asymptomatic patients). Conclusion: According to the results of our study, the detected viral load in asymptomatic individuals was similar to that of symptomatic patients, indicating that asymptomatic infections can potentially transmit the disease. Therefore, screening and detection of asymptomatic cases is an important and key measure in prevention and early control of COVID-19 worldwide.
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