Ischemic stroke after bivalent covid-19 vaccination: self-controlled case series study

HIGHLIGHTS

• What: The aim of this study was to evaluate the risk of ischemic stroke following bivalent COVID-19 vaccination during the 2022-2023 season. Attributable risk (AR) was calculated using the approach described in Farrington et al : AR= RI -1 n R RI N where RI is the relative incidence; n R is the number of ischemic stroke events in the risk interval; and N is the number of recipients of a vaccine or dose. The study showed an increased point estimate for the risk of ischemic stroke in a risk interval of 1-42 days only . . .
  

   

  

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