General practitioners choose within a narrow range of drugs when initiating new treatments: a cohort study of cardiovascular drug formularies.

摘要: The aims of this study were (1) to develop and evaluate a new method for investigating personal drug formularies in general practice (2) test the hypothesis that there is difference between incident ongoing use. In 2002, we studied prescribing patterns beta-blockers, calcium channel blockers, angiotensin converting enzyme (ACE) inhibitors, angiotensin-II antagonists statins County Funen, Denmark (180 practices, 472,000 inhabitants). For each practice, distinguished an formulary consisting prescriptions users including patients already treatment. Prescription data retrieved from Odense University Pharmacoepidemiologic Database (OPED). Four different measures evaluated used comparing General practitioners’ (GPs’) comprised significantly fewer drugs than their all groups except antagonists. total number was 1.8 3.3. We found differences 0.5 1.6 analogues DU 90% (number accounting prescribed volume measured defined daily doses) segment selectivity index 0.05 0.12. preference most analogue 9–18% higher among patients. highly correlated with other quantified both range skewed distribution choice. Analysing GPs’ simple inexpensive studying own current formularies. GPs choose within narrow