Correspondence to:

Regional differences in incidence and clinical presentation of type 1 diabetes in children aged under 15 years in Croatia 141 www.cmj.hr Aim To determine regional differences in the incidence, in-cidence trends, and clinical presentation of type 1 diabetes in children under the age of 15 years in Croatia in a 9-year period (1995-2003). Methods We included the patients who had been diag-nosed with the disease and had started the insulin treat-ment before they were 15 years old. Regional differences between eastern, central, and southern Croatia were ob