title: Changing GPs' prescription patterns through guidelines and feedback. Intervention study.
abstract: OBJECTIVE
  To investigate whether and how a multi-dimensional intervention including clinical guidelines on the choice of medical treatment in the primary and the secondary health care sector, and individual feedback to general practices about their own and other practices' prescription patterns in five Anatomical Therapeutic Chemical classification system (ATC)-groups was followed by changes in the practices' prescription pattern.
  
  
  METHODS
  Prospective historical registry study and a questionnaire study of GPs' self-reported use of guidelines and feedback.
  
  
  RESULTS
  In every ATC-group the number of prescribed defined daily doses (DDDs) kept growing after the intervention, while potential savings by DDD decreased. Individual practices' changes in the prescription pattern differed by ATC-group and practices with high potential savings/DDD before the intervention showed the greatest relative reduction in potential savings/DDD. The county's average cost/DDD for the five ATC-groups declined from above the Danish average before the intervention to a level below the average cost/DDD after the intervention. In the questionnaire study (response rate: 79%), 69% of respondents had read the guidelines and 78% reported that the feedback influenced their prescription of drugs.
  
  
  CONCLUSIONS
  The observed changes in drug costs and potential savings were not due to volume effects but a combination of price effects, including generic substitution and choice of less expensive analogues, demonstrating that it is possible to change GPs' prescription patterns without interfering with patients' access to treatment or with GPs' clinical freedom.'
authors: Region Sealand, Quality and Development, Alléen, Denmark. KGS@regionsjaelland.dk
authors: Kirsten
authors: K
authors: Schaefer
authors: Anders Onsberg
authors: AO
authors: Hansen
authors: Henrik
authors: H
authors: Maerkedahl
authors: Claus
authors: C
authors: Rehfeld
authors: Hans Okkels
authors: HO
authors: Birk
authors: Lars Onsberg
authors: LO
authors: Henriksen
mesh_terms: D016527:Drug Costs; D004363:Drug Utilization; D005246:Feedback; D006801:Humans; D017410:Practice Guidelines as Topic; D010818:Practice Patterns, Physicians'