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Multicenter Study
. 2021 Sep 28;326(12):1210-1212.
doi: 10.1001/jama.2021.13443.

Myocarditis and Pericarditis After Vaccination for COVID-19

George A Diaz  1 , Guilford T Parsons  2 , Sara K Gering  3 , Audrey R Meier  4 , Ian V Hutchinson  5 , Ari Robicsek  2
Affiliations
Multicenter Study

Myocarditis and Pericarditis After Vaccination for COVID-19

George A Diaz et al. JAMA. .

Abstract

This study investigates the incidence of myocarditis and pericarditis emergency department or inpatient hospital encounters before COVID-19 vaccine availability (January 2019–January 2021) and during a COVID-19 vaccination period (February-May 2021) in a large US health care system.

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Conflict of interest statement

Conflict of Interest Disclosures: Dr Diaz reported receipt of clinical trial research support from Gilead Sciences, Regeneron, Roche, Boehringer Ingelheim, and Edesa Biotech and scientific advisory board membership for Safeology. No other disclosures were reported.

Figures

Figure.
Figure.. Monthly Number of Inpatient and Emergency Department Cases of Myocarditis and Pericarditis at 40 Hospitals in the Western US
A statistical process control c-chart was used for panels A and B, with control limits at ±3 times the standard deviation of the overall count. Orange circles are counts outside the control limits. Solid lines are incidence over the entire time frame; dashed lines are the ±3 sigma (control limits) about the incidence over the entire time frame.
See this image and copyright information in PMC

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