To determine the prevalence and the incidence of diabetic nephropathy in Type 1 diabetes mellitus in Spain and to investigate the risk factors for the development of microalbuminuria.
Diabetes Unit, Hospital Clínic Universitari, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), C/Villarroel 170, Barcelona, Spain. esmatjes@clinic.ub.es