ENE-COVID nationwide serosurvey served to characterize asymptomatic infections and to develop a symptom-based risk score to predict COVID-19. Author(s): Pérez-Gómez B, Pastor-Barriuso R, Pérez-Olmeda M, Hernán MA, Oteo-Iglesias J, Fernández de Larrea N, Fernández-GarcÃa A, MartÃn M, Fernández-Navarro P, Cruz I, SanmartÃn JL, León Paniagua J, Muñoz-Montalvo JF, Blanco F, Yotti R, Pollán M, ENE-COVID Study Group.|Journal: J Clin Epidemiol|PMID: 34126206| August 2021 To characterize asymptomatic SARS-CoV-2 infections and develop a symptom-based risk score useful in primary healthcare.
Causal analyses of existing databases: no power calculations required. Author(s): Hernán MA|Journal: J Clin Epidemiol|PMID: 34461211| August 2021 Observational databases are often used to study causal questions. Before being granted access to data or funding, researchers may need…
