Cited by 310Viral Infections and Immunology ResearchCOVID-19 Clinical Research StudiesKawasaki Disease and Coronary Complications

The DOI matches its Crossref record; 10 of the 11 references it cites were found in a registry or an index.

Association Between COVID-19 and Myocarditis Using Hospital-Based Administrative Data — United States, March 2020–January 2021

Open access

Abstract

Viral infections are a common cause of myocarditis, an inflammation of the heart muscle (myocardium) that can result in hospitalization, heart failure, and sudden death (1). Emerging data suggest an association between COVID-19 and myocarditis (2-5). CDC assessed this association using a large, U.S. hospital-based administrative database of health care encounters from >900 hospitals. Myocarditis inpatient encounters were 42.3% higher in 2020 than in 2019. During March 2020-January 2021, the period that coincided with the COVID-19 pandemic, the risk for myocarditis was 0.146% among patients diagnosed with COVID-19 during an inpatient or hospital-based outpatient encounter and 0.009% among patients who were not diagnosed with COVID-19. After adjusting for patient and hospital characteristics, patients with COVID-19 during March 2020-January 2021 had, on average, 15.7 times the risk for myocarditis compared with those without COVID-19 (95% confidence interval [CI] = 14.1-17.2); by age, risk ratios ranged from approximately 7.0 for patients aged 16-39 years to >30.0 for patients aged <16 years or ≥75 years. Overall, myocarditis was uncommon among persons with and without COVID-19; however, COVID-19 was significantly associated with an increased risk for myocarditis, with risk varying by age group. These findings underscore the importance of implementing evidence-based COVID-19 prevention strategies, including vaccination, to reduce the public health impact of COVID-19 and its associated complications.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.15585/mmwr.mm7035e5

Cites

10 of 10 references verified0 citation errors · 0 not checkable

Statistics

Figures

FIGURE 1 Number of myocarditis and COVID-19 inpatient encounters, by month* — Premier Healthcare Database Special COVID-19 Release, United States, January 2019–May 2021 * Data from recent months might be incomplete.
FIGURE 1 Number of myocarditis and COVID-19 inpatient encounters, by month* — Premier Healthcare Database Special COVID-19 Release, United States, January 2019–May 2021 * Data from recent months might be incomplete.CC0 · PubMed Central
FIGURE 2 Adjusted risk ratio (A) and adjusted risk difference (B) of myocarditis comparing patients with and without COVID-19,* overall and by sex and age group — Premier Healthcare Database Special COVID-19 Release, United States, March 2020–January 2021 * The panels show adjusted risk ratios (A) and adjusted risk differences (B) of myocarditis comparing patients with COVID-19 to patients without COVID-19 (reference), obtained from a single logit model with the following covariates: a three-way interaction between presence of COVID-19, sex, and age group, including lower-order interactions and main effects; race/ethnicity; payer type; hospital U.S. Census region; and hospital urbanicity. 95% confidence intervals indicated by error bars.
FIGURE 2 Adjusted risk ratio (A) and adjusted risk difference (B) of myocarditis comparing patients with and without COVID-19,* overall and by sex and age group — Premier Healthcare Database Special COVID-19 Release, United States, March 2020–January 2021 * The panels show adjusted risk ratios (A) and adjusted risk differences (B) of myocarditis comparing patients with COVID-19 to patients without COVID-19 (reference), obtained from a single logit model with the following covariates: a three-way interaction between presence of COVID-19, sex, and age group, including lower-order interactions and main effects; race/ethnicity; payer type; hospital U.S. Census region; and hospital urbanicity. 95% confidence intervals indicated by error bars.CC0 · PubMed Central

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Show all 11 references

Cited by

Sorted by citations

See all 310

Metadata

Authors
Boehmer, T. K., Kompaniyets, L., Lavery, A. M., Hsu, J., Ko, J. Y., Yusuf, H., Romano, S. D., Gundlapalli, A. V., Oster, M. E., & Harris, A. M.
Affiliations
Centers for Disease Control and Prevention (US)
Corresponding author
Boehmer, Tegan K.
Venue
MMWR. Morbidity and Mortality Weekly Report
Published
2021-09-03
Volume
70
Issue
35
Pages
1228-1232
ISSN
  • 0149-2195 (ISSN-L)
  • 1545-861X
OpenAlex
W3197576044
Cited by
310
References
11
Citations by year
2026: 20 · 2025: 35 · 2024: 56 · 2023: 76 · 2022: 104 · 2021: 19
FWCI
42.74
Type
journal article
Language
en
Open access
Locations
  • MMWR Morbidity and Mortality Weekly Report (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion, public-domain)
  • PubMed Central (publishedVersion, public-domain)
  • PubMed (publishedVersion)
Funders
Centers for Disease Control and Prevention
Topics
  • Health Sciences › Medicine › Infectious Diseases › Viral Infections and Immunology Research
  • Health Sciences › Medicine › Infectious Diseases › COVID-19 Clinical Research Studies
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Kawasaki Disease and Coronary Complications
Keywords
COVID-19 pandemic, myocarditis, SARS-CoV-2, hospitalization, COVID-19 prevention, COVID-19 vaccination
MeSH terms
COVID-19, Adolescent, Adult, Aged, Female, Humans, Male, Medical Records, Middle Aged, Myocarditis, Risk Factors, United States, Databases, Factual, Risk Assessment, Young Adult

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review