Cross-sectional study of preprints and final journal publications from COVID-19 studies: discrepancies in results reporting and spin in interpretation
Objective To compare results reporting and the presence of spin in COVID-19 study preprints with their finalised journal publications.Design Cross-sectional study.Setting International medical literature.Participants Preprints and final journal publications of 67 interventional and observational studies of COVID-19 treatment or prevention from the