Observational studyThe American journal of emergency medicine2021
Decreased hospital admissions through emergency departments during the COVID-19 pandemic.
Observational study in The American journal of emergency medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 93 papers, 1 of them a synthesis 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.
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Who cites it
93 citing papers in PubMed, 1 synthesis or guideline pooled it, 165 citations in OpenAlex.
- Consequences of Social Distancing Measures During the COVID-19 Pandemic First Wave on the Epidemiology of Children Admitted to Pediatric Emergency Departments and Pediatric Intensive Care Units: A Systematic Review.Frontiers in pediatrics · 2022Pooled it
- Impact of COVID-19 Restrictions on Estimating Causal Effects: Fluoroquinolones and Tendon Rupture.Pharmacoepidemiology and drug safety · 2026Article
- Association of experiencing homelessness with hospital utilization and medical bills among people who have injected drugs: A community-based cohort and data linkage study.Drug and alcohol dependence · 2026Article
- Impact of the COVID-19 Pandemic on Inpatient Cancer Treatment and Outcomes in the United States.Mayo Clinic proceedings. Innovations, quality & outcomes · 2026Article
- Changes in Hepatitis A seroprevalence over 11 years and the impact of the National Vaccination Program in Bursa, Türkiye.Irish journal of medical science · 2026Article
- Alcoholic and non-alcoholic acute pancreatitis mortality in the United States, 2006-2023: A nationwide trend analysis.Scientific reports · 2026Article
- Article
- United States healthcare encounters for poisoning involving cannabis relative to other substances.The American journal of drug and alcohol abuse · 2026Article
- Significant Increase inGastro hep advances · 2026Article
- SARS-CoV-2-International journal of microbiology · 2026Review
- Behavioral changes and delayed colorectal cancer diagnosis during COVID-19: a real-world survey analysis.BMC gastroenterology · 2025Article
- Trends in Proportion of Delirium Among Older Emergency Department Patients in South Korea, 2017-2022.The western journal of emergency medicine · 2025Article
- Extended Hospital Stays in Medicare Advantage and Traditional Medicare.JAMA internal medicine · 2025Article
- Macular hole surgery in times of the COVID-19 pandemic.Scientific reports · 2025Article
- Trends in hospital discharge outcomes among high-risk Medicare beneficiaries before and during the COVID-19 pandemic.Health affairs scholar · 2025Article
- The impact of the COVID-19 pandemic on governmental hospitals performance indicators in city of Yazd, Iran: an interrupted time-series analysis.BMC health services research · 2025Article
- Socioeconomic differences in discharge against medical advice and hospital admission among emergency department visits associated with substance use in the United States.Frontiers in public health · 2025Article
- Total hip arthroplasty, associated rehabilitation care and the COVID-19 pandemic in France.Frontiers in health services · 2025Article
- Economic burden of antimicrobial resistance on patients in Pakistan.Frontiers in public health · 2025Article
- Toward a New Approach to Creating Population-Representative Data for Demographic Research.Demography · 2024Article
33 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
7 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
STUDY
objectiveEmergency Department (ED) visits decreased significantly in the United States during the COVID-19 pandemic. A troubling proportion of this decrease was among patients who typically would have been admitted to the hospital, suggesting substantial deferment of care. We sought to describe and characterize the impact of COVID-19 on hospital admissions through EDs, with a specific focus on diagnosis group, age, gender, and insurance coverage.
methodsWe conducted a retrospective, observational study of aggregated third-party, anonymized ED patient data. This data included 501,369 patient visits from twelve EDs in Massachusetts from 1/1/2019-9/9/2019, and 1/1/2020-9/8/2020. We analyzed the total arrivals and hospital admissions and calculated confidence intervals for the change in admissions for each characteristic. We then developed a Poisson regression model to estimate the relative contribution of each characteristic to the decrease in admissions after the statewide lockdown, corresponding to weeks 11 through 36 (3/11/2020-9/8/2020).
resultsWe observed a 32% decrease in admissions during weeks 11 to 36 in 2020, with significant decreases in admissions for chronic respiratory conditions and non-orthopedic needs. Decreases were particularly acute among women and children, as well as patients with Medicare or without insurance. The most common diagnosis during this time was SARS-CoV-2.
conclusionOur findings demonstrate decreased hospital admissions through EDs during the pandemic and suggest that several patient populations may have deferred necessary care. Further research is needed to determine the clinical and operational consequences of this delay.
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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.