Abstract
A growing number of persons previously infected with SARS-CoV-2, the virus that causes COVID-19, have reported persistent symptoms, or the onset of long-term symptoms, ≥۴ weeks after acute COVID-19; these symptoms are commonly referred to as post-COVID conditions, or long COVID (۱). Electronic health record (EHR) data during March 2020–November 2021, for persons in the United States aged ≥۱۸ years were used to assess the incidence of 26 conditions often attributable to post-COVID (hereafter also referred to as incident conditions) among patients who had received a previous COVID-19 diagnosis (case-patients) compared with the incidence among matched patients without evidence of COVID-19 in the EHR (control patients).