Journal: American Journal of Epidemiology
Article Title: A three-part model for the self-controlled case series design to estimate and characterize adverse event risk in an overlapping risk period after multiple vaccines: application to ischemic stroke following Pfizer-BioNTech bivalent COVID-19 vaccine and influenza vaccine
doi: 10.1093/aje/kwaf115
Figure Lengend Snippet: Timeline for analysis of electronically identified ischemic stroke events among members aged <65 years of Kaiser Permanente Southern California who received Pfizer-BioNTech bivalent COVID-19 and influenza vaccination during the period from September 1, 2022, to March 31, 2023.
Article Snippet: However, among Medicare beneficiaries who received a bivalent COVID-19 vaccine along with a high-dose or adjuvanted influenza vaccine, there was a significant association with nonhemorrhagic stroke within 22 to 42 days post-vaccination for the Pfizer-BioNTech bivalent COVID-19 vaccine and a significant association with transient ischemic attack within 1 to 21 days post-vaccination for the Moderna bivalent COVID-19 vaccine.
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