title: [OCEBM levels of evidence system].
abstract: The hierarchy of evidence from medical research is a key concept in evidence-based medicine (EBM). In 1998, the Oxford Centre for Evidence-Based Medicine published a levels table based on study designs. An updated and more user-friendly version, published in 2011, focuses on the issues of prevalence, diagnosis, prognosis, treatment and screening. This paper presents and discusses this approach.
authors.affiliation: Bibliothèque des Sciences de la Vie, Université de Liège, Belgique. Nancy.Durieux@ulg.ac.be
authors.forename: N
authors.initials: N
authors.lastname: Durieux
authors.affiliation: Bibliothèque des Sciences de la Vie, Université de Liège, Belgique.
authors.forename: S
authors.initials: S
authors.lastname: Vandenput
authors.affiliation: Bibliothèque des Sciences de la Vie, Université de Liège, Belgique.
authors.forename: F
authors.initials: F
authors.lastname: Pasleau
mesh_terms: D004739:England; D019317:Evidence-Based Medicine; D006801:Humans