Sousa, Álvaro Francisco Lopes deSchneider, GuilhermeCarvalho, Herica Emilia Félix deOliveira, Layze Braz deLima, Shirley Verônica Melo AlmeidaSousa, Anderson Reis deAraújo, Telma Maria Evangelista deCamargo, Emerson Lucas SilvaOriá, Mônica Oliveira BatistaRamos, Carmen VianaOliveira, Rodrigo Mota deAlmeida, Camila Aparecida Pinheiro LandimFerreira, Andrêa Jacqueline FortesTeixeira, Jules Ramon BritoLua, IracemaSouza, Fernanda de OliveiraAraújo, Tânia Maria deFronteira, InêsMendes, Isabel Amélia Costa2022-01-052022-01-052022-01-012071-1050http://hdl.handle.net/10400.14/36358In the wake of the COVID-19 pandemic, a complex phenomenon called the “infodemic” has emerged, compromising coping with the pandemic. This study aims to estimate the prevalence of agreement with misinformation about COVID-19 and to identify associated factors. A web survey was carried out in Portuguese-speaking countries in two stages: 1. the identification of misinformation circulating in the included countries; 2. a multicentric online survey with residents of the included countries. The outcome of the study was agreement or disagreement with misinformation about COVID-19. Multivariate analyzes were conducted using the Poisson regression model with robust variance, a logarithmic link function, and 95% confidence intervals. The prevalence of agreement with misinformation about COVID-19 was 63.9%. The following factors increased the prevalence of this outcome: having a religious affiliation (aPR: 1454, 95% CI: 1393–1517), having restrictions on leisure (aPR: 1230, 95% CI: 1127–1342), practicing social isolation (aPR: 1073, 95% CI: 1030–1118), not avoiding agglomeration (aPR: 1060, 95% CI: 1005–1117), not seeking/receiving news from scientific sources (aPR: 1153, 95% CI: 1068–1245), seeking/receiving news from three or more non-scientific sources (aPR: 1114, 95% CI: 1049–1182), and giving credibility to news carried by people from social networks (aPR: 1175, 95% CI: 1104–1251). There was a high prevalence of agreement with misinformation about COVID-19. The quality, similarity, uniformity, and acceptance of the contents indicate a concentration of themes that reflect “homemade”, simple, and easy methods to avoid infection by SARS-CoV-2, compromising decision-making and ability to cope with the disease.engBiomedical technologyCoronavirus infectionsCOVID-19Health-related behaviorsMisinformationPandemicsjournal article10.3390/su1401023585121859057000751312700001