title: Why don't physicians follow clinical practice guidelines? A framework for improvement.
abstract: BACKGROUND
  Despite wide promulgation, clinical practice guidelines have had limited effect on changing physician behavior. Little is known about the process and factors involved in changing physician practices in response to guidelines.
  
  
  OBJECTIVE
  To review barriers to physician adherence to clinical practice guidelines.
  
  
  METHODS
  We searched the MEDLINE, Educational Resources Information Center (ERIC), and HealthSTAR databases (January 1966 to January 1998); bibliographies; textbooks on health behavior or public health; and references supplied by experts to find English-language article titles that describe barriers to guideline adherence.
  
  
  METHODS
  Of 5658 articles initially identified, we selected 76 published studies describing at least 1 barrier to adherence to clinical practice guidelines, practice parameters, clinical policies, or national consensus statements. One investigator screened titles to identify candidate articles, then 2 investigators independently reviewed the texts to exclude articles that did not match the criteria. Differences were resolved by consensus with a third investigator.
  
  
  METHODS
  Two investigators organized barriers to adherence into a framework according to their effect on physician knowledge, attitudes, or behavior. This organization was validated by 3 additional investigators.
  
  
  RESULTS
  The 76 articles included 120 different surveys investigating 293 potential barriers to physician guideline adherence, including awareness (n = 46), familiarity(n = 31), agreement (n = 33), self-efficacy (n = 19), outcome expectancy (n = 8), ability to overcome the inertia of previous practice (n = 14), and absence of external barriers to perform recommendations (n = 34). The majority of surveys (70 [58%] of 120) examined only 1 type of barrier.
  
  
  CONCLUSIONS
  Studies on improving physician guideline adherence may not be generalizable, since barriers in one setting may not be present in another. Our review offers a differential diagnosis for why physicians do not follow practice guidelines, as well as a rational approach toward improving guideline adherence and a framework for future research.
authors.affiliation: Department of Pediatrics, Robert Wood Johnson Clinical Scholars Program, Johns Hopkins School of Medicine, Baltimore, MD, USA. mcabana@umich.edu
authors.forename: M D
authors.initials: MD
authors.lastname: Cabana
authors.forename: C S
authors.initials: CS
authors.lastname: Rand
authors.forename: N R
authors.initials: NR
authors.lastname: Powe
authors.forename: A W
authors.initials: AW
authors.lastname: Wu
authors.forename: M H
authors.initials: MH
authors.lastname: Wilson
authors.forename: P A
authors.initials: PA
authors.lastname: Abboud
authors.forename: H R
authors.initials: HR
authors.lastname: Rubin
mesh_terms: D001291:Attitude of Health Personnel; D003625:Data Collection; D019983:Guideline Adherence; D007722:Health Knowledge, Attitudes, Practice; D017410:Practice Guidelines as Topic; D010818:Practice Patterns, Physicians'; D014481:United States