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QUESTION: In patients with coronary artery disease, is case method learning (CML) for general practitioners (GPs) based on clinical practice guidelines (CPGs) more effective at reducing cholesterol concentrations than conventional introduction of CPGs for secondary prevention of coronary artery disease?
Design
Cluster randomised (allocation concealed*), blinded (GPs, patients, data collectors, and data analysts/statisticians),* controlled trial with 2 years of follow up.
Setting
Södertälje, Stockholm County, Sweden.
Patients
88 patients ≤70 years of age (mean age 62 y, 85% men) with an objective diagnosis of coronary artery disease. Exclusion criteria included other life threatening diseases and moving out of the catchment area. Follow up was 89%.
Intervention
The 14 primary healthcare centres in Södertälje were divided into 2 matched and balanced groups (“clusters”) taking into account geographic …
Footnotes
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Sources of funding: Stockholm County Council and Karolinska Institute.
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For correspondence: Dr P Henriksson, Danderyd University Hospital and Karolinska Institute, Stockholm, Sweden. Peter.Henriksson{at}med.ds.sll.se