Two-year trajectories of COVID-19 symptoms and their association with illness perception: A prospective cohort study in Amsterdam, the Netherlands

Background We used data from a prospective cohort to explore two-year trajectories of “long COVID” (persistent symptoms after SARS-CoV-2 infection) and their association with illness perception. Methods RECoVERED participants (adults; prospectively enrolled following laboratory-confirmed SARS-CoV-2 infection, May 2020-June 2021) completed symptom questionnaires at months 2-12, 18 and 24, and the Brief Illness Perception Questionnaire (B-IPQ) at months 1, 6, and 12. Using group-based trajectory models (GBTM), we modelled symptoms (mean total numbers and proportion with 4 specific complaints), i... Mehr ...