title: Definitions of bias in clinical research.
abstract: In this chapter a catalog of the various types of bias that can affect the validity of clinical epidemiologic studies is presented. The biases can be grouped into those associated with selection of subjects, misclassification or misinformation, and finally confounding. Definitions are provided for each type of bias listed.
authors.affiliation: Faculty of Medicine, Health Science Centre, Memorial University of Newfoundland, Room H1407, 300 Prince Philip Drive, St. John's, NF, Canada, A1B 3V6, gwarden@mun.ca.
authors.forename: Geoffrey
authors.initials: G
authors.lastname: Warden
mesh_terms: D015982:Bias; D035843:Biomedical Research / Q000379:methods*; D006801:Humans; D012196:Review Literature as Topic; D013223:Statistics as Topic / Q000379:methods