Clinical outcomes at medium-term follow-up of COVID-19.

Background: The long coronavirus disease 2019 (COVID-19) syndrome is defined as persistent physical, cognitive and/or psychological symptoms that continue for more than 12 weeks following the acute illness.

Methods: In all, 2,646 patients were randomly selected from all individuals who were diagnosed with COVID-19. They were interviewed so as to assess the persistence of symptoms and health-related quality of life.