ArticleClinical infectious diseases : an official publication of the Infectious Diseases Society of America2023
Changing Severity and Epidemiology of Adults Hospitalized With Coronavirus Disease 2019 (COVID-19) in the United States After Introduction of COVID-19 Vaccines, March 2021-August 2022.
Article in Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.
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Who cites it
23 citing papers in PubMed, 1 synthesis or guideline pooled it.
- A Systematic Review and Meta-analysis of the Effectiveness of Remdesivir to Treat SARS-CoV-2 in Hospitalized Patients: Have the Guidelines Evolved With the Evidence?Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2025Pooled it
- Fostamatinib for Hospitalized Adults With COVID-19 and Hypoxemia: A Randomized Clinical Trial.JAMA network open · 2024Trial
- Is acute respiratory distress syndrome a preventable disease?Intensive care medicine · 2026Review
- Chronic Conditions as Risk Factors for COVID-19-Associated Hospitalization Among Adults, 2020-2023.American journal of preventive medicine · 2026Article
- What Has SARS-CoV-2 Taught Us About Evolution?Cureus · 2025Review
- Real-World Effectiveness of Boosting Against Omicron Hospitalization in Older Adults, Stratified by Frailty.Vaccines · 2025Article
- Genomic Surveillance for SARS-CoV-2 Variants: Circulation of Omicron XBB and JN.1 Lineages - United States, May 2023-September 2024.MMWR. Morbidity and mortality weekly report · 2024Article
- Optimal surgical timing for lung cancer following SARS-CoV-2 infection: a prospective multicenter cohort study.BMC cancer · 2024Observational
- Risk factors for mortality in hospitalized COVID-19 patients across five waves in Pakistan.Scientific reports · 2024Article
- Comprehensive Review of COVID-19: Epidemiology, Pathogenesis, Advancement in Diagnostic and Detection Techniques, and Post-Pandemic Treatment Strategies.International journal of molecular sciences · 2024Review
- Quantifying Disparities in COVID-19 Vaccination Rates by Rural and Urban Areas: Cross-Sectional Observational Study.JMIR public health and surveillance · 2024Observational
- Observational
- Association between emergency department disposition and mortality in patients with COVID-19 acute respiratory distress syndrome.Journal of the American College of Emergency Physicians open · 2024Article
- Severity of Respiratory Syncytial Virus vs COVID-19 and Influenza Among Hospitalized US Adults.JAMA network open · 2024Article
- COVID-19: The Development and Validation of a New Mortality Risk Score.Journal of clinical medicine · 2024Article
- Article
- Three Years of the Coronavirus Disease 2019 Pandemic in a European Region: A Population-Based Longitudinal Assessment in Madrid Between 2020 and 2022.Open forum infectious diseases · 2024Article
- Comparing COVID-19 severity in patients hospitalized for community-associated Delta, BA.1 and BA.4/5 variant infection.Frontiers in public health · 2024Article
- Clinical Outcomes of US Adults Hospitalized for COVID-19 and Influenza in the Respiratory Virus Hospitalization Surveillance Network, October 2021-September 2022.Open forum infectious diseases · 2024Article
- SARS-CoV-2 Case-Definitions Must Include Clinical Criteria: Reply to Kojima et al.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2023Article
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Abstract
introductionUnderstanding the changing epidemiology of adults hospitalized with coronavirus disease 2019 (COVID-19) informs research priorities and public health policies.
methodsAmong adults (≥18 years) hospitalized with laboratory-confirmed, acute COVID-19 between 11 March 2021, and 31 August 2022 at 21 hospitals in 18 states, those hospitalized during the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron-predominant period (BA.1, BA.2, BA.4/BA.5) were compared to those from earlier Alpha- and Delta-predominant periods. Demographic characteristics, biomarkers within 24 hours of admission, and outcomes, including oxygen support and death, were assessed.
resultsAmong 9825 patients, median (interquartile range [IQR]) age was 60 years (47-72), 47% were women, and 21% non-Hispanic Black. From the Alpha-predominant period (Mar-Jul 2021; N = 1312) to the Omicron BA.4/BA.5 sublineage-predominant period (Jun-Aug 2022; N = 1307): the percentage of patients who had ≥4 categories of underlying medical conditions increased from 11% to 21%; those vaccinated with at least a primary COVID-19 vaccine series increased from 7% to 67%; those ≥75 years old increased from 11% to 33%; those who did not receive any supplemental oxygen increased from 18% to 42%. Median (IQR) highest C-reactive protein and D-dimer concentration decreased from 42.0 mg/L (9.9-122.0) to 11.5 mg/L (2.7-42.8) and 3.1 mcg/mL (0.8-640.0) to 1.0 mcg/mL (0.5-2.2), respectively. In-hospital death peaked at 12% in the Delta-predominant period and declined to 4% during the BA.4/BA.5-predominant period.
conclusionsCompared to adults hospitalized during early COVID-19 variant periods, those hospitalized during Omicron-variant COVID-19 were older, had multiple co-morbidities, were more likely to be vaccinated, and less likely to experience severe respiratory disease, systemic inflammation, coagulopathy, and death.
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