Background. Sentinel Data Capture is an IT program designed to collect data automatically from GPs’ electronic health record system. Data include ICPC diagnoses, National Health Service disbursement codes, laboratory analysis, and prescribed drugs. Quality feedback reports are generated individually for each practice on the basis of the accumulated data and are available online only for the specific practice. Objective. To describe the development of the quality of care concerning drug prescriptions for diabetes patients listed with GPs using the Data Capture module. Methods. In a cohort study, among 8320 registered patients with diabetes, we analyzed the change in the proportion of medication for uncontrolled cases of diabetes. Results. From 2009 to 2010, there was an absolute risk reduction of 1.35% (0.89–1.81: ) in proportion of persons not in antidiabetic medication despite an HbA1c above 7.0. Similarly, there was a 4.51% (3.42–5.61: ) absolute risk reduction in patients not in antihypertensive treatment despite systolic blood pressure above 130？mm？Hg and 4.73% (3.56–5.90: ) absolute risk reduction in patients with total cholesterol level above 4.5？mmol/L and not receiving lipid-lowering treatment. Conclusions. Structured collection of electronic data from general practice and feedback with reports on quality of care for diabetes patient seems to give a significant reduction in proportion of patients with no medical treatment over one year for participating GPs. Due to lack of a control group, we are, however, not able to say if the drop in the proportion of uncontrolled cases is a result of participation in collection of electronic data and feedback alone. 1. Background Several interventions have been investigated in order to improve quality of diabetes care. Two recent systematic reviews evaluated interventions to improve diabetes management including provider education, point-of-care reminders, audit and feedback, and registries. Both reviews showed improved processes for physician-directed interventions but no improvements in patient outcomes for diabetes [1, 2]. Only few studies have, however, dealt with automatically collected and electronic feedback with data to doctors on diabetes care [3]. Danish general practice is considered leading in integrating IT technology in everyday patient care and in the electronic communication with the rest of health care system [4]. In 2006, Danish general practitioners (GPs) were invited to implement a Data Capture module. Data from the participating practices were automatically sent to the National Danish
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