title: A review of the cost of atrial fibrillation.
abstract: OBJECTIVE
  To systematically review and synthesize the literature on the costs of atrial fibrillation (AF) with attention to study design and costing methods, geography, and intervention approaches.
  
  
  METHODS
  A systematic search for previously published studies reporting the costs for AF patients was conducted. Data were analyzed in three steps: first by evaluating overall system costs; second by evaluating the relative contribution of specific cost components; and third by examining variations across study designs, across primary treatment approach, and by geography. Finally, a specific review of the treatment costs associated with anticoagulation treatment was examined given the clinical importance and attention given to these costs in the literature.
  
  
  RESULTS
  The literature search resulted in 115 articles. On review of the abstracts or full text of these articles, 21 articles met all study criteria and reported on health system AF-related direct costs. A further six articles focused exclusively on anticoagulation costs for patients with AF. The overall average annual system cost across 27 estimates obtained from the literature was $5450 (SD = $3624) in 2010 Canadian dollars and ranged from a low of $1,632 to a high of $21,099. About one-third of these costs could be attributed to anticoagulation management. The largest cost component was acute care, followed by outpatient and physician and then medication-related costs.
  
  
  CONCLUSIONS
  AF-related medical costs are high, reflecting resource-intensive and long-term treatments including anticoagulation treatment. These costs, accompanied with increasing prevalence, justify increased attention to the management of patients with AF. Future studies of AF cost should ensure a broad assessment of the incremental direct medical and societal cost associated with this diagnosis.
authors.affiliation: Health Policy Management and Evaluation, University of Toronto, Toronto, ON, Canada. walter.wodchis@utoronto.ca
authors.forename: Walter P
authors.initials: WP
authors.lastname: Wodchis
authors.forename: R Sacha
authors.initials: RS
authors.lastname: Bhatia
authors.forename: Kori
authors.initials: K
authors.lastname: Leblanc
authors.forename: Nazanin
authors.initials: N
authors.lastname: Meshkat
authors.forename: Dante
authors.initials: D
authors.lastname: Morra
mesh_terms: D001281:Atrial Fibrillation / Q000191:economics*; D017281:Cost of Illness; D003365:Costs and Cost Analysis; D017048:Health Care Costs / Q000639:trends*; D006801:Humans; D012107:Research Design