title: Decision analysis using decision trees for a simple clinical decision.
abstract: OBJECTIVE
  To illustrate the use of decision trees with a utility index in clinical decision making.
  
  
  METHODS
  A decision tree was created related to whether or not to perform a tonsillectomy. Data from the literature were applied to a common hypothetical clinical scenario.
  
  
  RESULTS
  A decision tree graphically represents the typical decision-making process that many clinicians use. The addition of utility functions permitted consideration of the adverse or beneficial effects of outcomes, altering the treatment decision.
  
  
  CONCLUSIONS
  Quantitative tools such as decision trees may quantify outcome preferences and aid in clinical decision making, but the proper tool and background data are essential.
authors.affiliation: Department of Otolaryngology, University of Manitoba, Winnipeg, MB.
authors.forename: Brian
authors.initials: B
authors.lastname: Blakley
mesh_terms: D001049:Apnea / Q000601:surgery*; D002648:Child; D003657:Decision Making; D003661:Decision Support Techniques; D003663:Decision Trees; D006801:Humans; D008297:Male; D014068:Tonsillectomy / Q000379:methods*