Through analysis of the electronic medical records of 284,592 vaccinated patients, using a sequence–symmetry analysis, Kwan et al. show that the risk of postural orthostatic tachycardia syndrome (POTS) is increased after COVID-19 vaccination compared to a 90-day control period before exposure—although 5.35 times lower than the risk of POTS occurrence after SARS-CoV-2 infection.
- Alan C. Kwan
- Joseph E. Ebinger
- Susan Cheng
