About The Study: This systematic review and meta-analysis of 41 studies including 860,000 patients found that certain demographic characteristics (e.g., age and sex), comorbidities, and severe COVID-19 were associated with an increased risk of post−COVID-19 condition (PCC; also known as long COVID), whereas vaccination had a protective role against developing PCC sequelae. These findings may enable a better understanding of who may develop PCC and provide additional evidence for the benefits of vaccination.
Authors: Vassilios S. Vassiliou, M.B.B.S., Ph.D., of Norfolk and Norwich University Hospital in Norwich, United Kingdom, is the corresponding author.
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(doi:10.1001/jamainternmed.2023.0750)
