RESEARCH DESIGN AND
METHODS
The CODE-2 study
The CODE-2 study was performed to provide comprehensive data on costs and quality of life and involved 7,635 patients in eight European countries.Full details have been presented by Jonsson et al.(3).
A sample of Dutch type 2 diabetes patients,recruited by are presentative sample of 29 Dutch general practitioners,
completed questionnaires regarding quality of life and treatment satisfaction.Information regarding medical costs was also collected and has already been reported(5).The general practitioners,randomly selected from a computerized database, identified all type 2 diabetic patients in their practice (n =1,371).