title: Mix and match: how to regain your balance.
abstract: In retrospective studies, a demographic imbalance often exists between cases and controls. This imbalance may affect outcome, independent of experimental group. We discuss matching methods that allow us to overcome these imbalances.
authors.affiliation: Assistant Professor of Surgery, Department of Surgery, Texas A&M Health Science Center, College of Medicine; Research Scientist I, Scott and White Memorial Clinic and Hospital; and Research Assistant, Central Texas VA Health Care System, Temple, TX. Electronic address: djupiter@sw.org.
authors.forename: Daniel C
authors.initials: DC
authors.lastname: Jupiter
mesh_terms: D015982:Bias; D016021:Epidemiologic Studies; D005260:Female; D006801:Humans; D008297:Male; D018579:Patient Selection; D057216:Propensity Score; D016032:Randomized Controlled Trials as Topic; D012189:Retrospective Studies
keywords: case matching; propensity score; study design