• 1 Patients who underwent the procedure during the last 12 months
  

• 2 - Drug prescriptions for diabetes or hypertension in accordance with guidelines
  
• 3 - Mean level of glycosylated haemoglobin and blood pressure
  
• All measures realized at the end of the study period.
  

Existing computer-based ordering systems for physicians provide drug-centred checks but offer little assistance for optimizing the overall patient-centred treatment strategy.

The ASTI project aims :

1. to design a guideline-based decision support system for diabetic and/or hypertensive patients, to help general practitioners :

   1. to carry out procedures (clinical and biological tests) according to guidelines (the recommended procedure at the recommended moment), and to get a synthetic view of all the elements they need to follow-up the patient
   2. to avoid prescription errors and to improve compliance with therapeutic guidelines. The " critic mode " operates as a background process and corrects the physician's prescription on the basis of automatically triggered elementary rules that account for isolated guideline recommendations. The " guided mode " directs the physician to the best treatment by browsing a comprehensive guideline knowledge base represented as a decision tree.
2. To measure the impact of ASTI when it is implemented with an electronic medical record system. We adopt a randomized design, with the practice as the unit of randomization.