title: [Principles and pitfalls of randomized controlled study].
abstract: Randomized controlled study is a central tool in the study of the prevention and treatment of diseases and effect of rehabilitation. Whereas prevention of bias resulting from potential differencies in study groups is a great advantage of the randomized study design, pitfalls are also involved in these studies. The task of the reader of the study is to evaluate the validity of the results, their clinical significance and possible applicability to one's own treatment decisions.
authors.forename: Jorma
authors.initials: J
authors.lastname: Komulainen
authors.forename: Piia
authors.initials: P
authors.lastname: Vuorela
authors.forename: Antti
authors.initials: A
authors.lastname: Malmivaara
mesh_terms: D006801:Humans; D016032:Randomized Controlled Trials as Topic; D012107:Research Design