Journal
ANNALS OF INTERNAL MEDICINE
Volume 141, Issue 7, Pages 523-532Publisher
AMER COLL PHYSICIANS
DOI: 10.7326/0003-4819-141-7-200410050-00008
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Background: Research is needed to validate effective and practical strategies for improving the provision of evidence-based medicine in primary care. Objective: To determine whether a multimethod quality improvement intervention was more effective than a less intensive intervention for improving adherence to 21 quality indicators for primary and secondary prevention of cardiovascular disease and stroke. Design: 2-year randomized, controlled clinical trial with the practice as the unit of randomization. Setting: 20 community-based family or general internal medicine practices in 14 states. All used the same electronic medical record. Participants: 44 physicians, 17 midlevel providers, and approximately 200 staff members; data from the electronic medical records of 87 291 patients. Interventions: All practices received copies of practice guidelines and quarterly performance reports. intervention practices also hosted quarterly site visits to help them adopt quality improvement approaches and participated in 2 network meetings to share best practice approaches. Measurements: The percentage of indicators at or above pre-defined targets and the percentage of patients who had achieved each clinical indicator. Results: Intervention practices improved 22.4 percentage points (from 11.3% to 33.7%) in the percentage of indicators at or above the target; control practices improved 16.4 percentage points (from 6.3% to 22.7%). The 6.0-percentage point absolute difference between the intervention and control group was not statistically significant (P > 0.2). Patients in intervention practices had greater improvements than those in control practices for diagnoses of hypertension (improvement difference, 15.7 percentage points [95% Cl, 5.2 to 26.3 percentage points]) and blood pressure control in patients with hypertension (improvement difference, 8.0 percentage points [Cl, 0.0 to 16.0 percentage points]). Limitations: The study involved a small number of practices and lacked a pure control group. Conclusions: Primary care practices that use electronic medical records and receive regular performance reports can improve their adherence to clinical practice guidelines for cardiovascular disease and stroke prevention.
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