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Background incidence rates of hospitalisations and emergency department visits for thromboembolic and coagulation disorders in Ontario, Canada for COVID-19 vaccine safety assessment: a population-based retrospective observational study.

Sharifa NasreenAndrew J CalzavaraMaria E SundaramShannon Elizabeth MacDonaldChristiaan H RigholtMenaka PaiThalia S FieldLily W ZhouSarah E WilsonJeffrey C Kwong
Published in: BMJ open (2021)
Our estimated background rates help contextualise observed events of these potential adverse events of special interest and to detect potential safety signals related to COVID-19 vaccines.
Keyphrases
  • coronavirus disease
  • emergency department
  • sars cov
  • risk factors
  • human health
  • cross sectional
  • atrial fibrillation