title: A cost-effective method to characterize variation in clinical practice.
abstract: This study's objective was to measure variation in physicians' practice styles and policies. Family physicians and general internists were surveyed about evidence-based medicine in the areas of asthma, congestive heart failure, and diabetes mellitus. They were asked about clinical recommendations where standards of practice were uncertain, controversial, or changing in response to published guidelines. Also included were items dealing with managed care. Although there was wide variation in responses to 20 of 36 items, some responses were consistent with practice guidelines. Responses to several items indicated a tendency to overuse expensive tests. Overall, the results indicate that a brief, open-ended survey can assess practice variation quickly and economically, as contrasted with more expensive analyses of medical records or claims data. With proper validation such assessments can be used as baselines to guide interventions, as well as measures of the outcomes of these interventions to change practice styles.
authors.affiliation: Jefferson Medical College, USA.
authors.forename: K
authors.initials: K
authors.lastname: Chang
authors.forename: S
authors.initials: S
authors.lastname: Sauereisen
authors.forename: M
authors.initials: M
authors.lastname: Dlutowski
authors.forename: J J
authors.initials: JJ
authors.lastname: Veloski
authors.forename: D B
authors.initials: DB
authors.lastname: Nash
mesh_terms: D001249:Asthma / Q000175:diagnosis / Q000628:therapy; D016009:Chi-Square Distribution; D003695:Delivery of Health Care / Q000592:standards*; D003920:Diabetes Mellitus / Q000175:diagnosis / Q000628:therapy; D019317:Evidence-Based Medicine; D005194:Family Practice / Q000592:standards; D005260:Female; D006333:Heart Failure / Q000175:diagnosis / Q000628:therapy; D006801:Humans; D007388:Internal Medicine / Q000592:standards; D008297:Male; D017410:Practice Guidelines as Topic; D010818:Practice Patterns, Physicians'; D017064:Process Assessment, Health Care / Q000191:economics*; D011795:Surveys and Questionnaires