[Comparison of registration of data from the Danish Childhood Diabetes Register and The National Discharge Register].

In 1996 The Danish Childhood Diabetes Register (DIA-REG B&U) was established. Data are validated yearly against The National Discharge Register (NDR). In the first seven years, 1509 cases were found either in the DSBD or in the NDR.

The significance of the prepubertal diabetes duration for the development of retinopathy and nephropathy in patients with type 1 diabetes.

Objective: A Danish nationwide prospective cohort of children and adolescents with type 1 diabetes was followed for 8 years to study the effect of the prepubertal duration of diabetes on early retinopathy and elevated albumin excretion rate (AER) (>20 microg/min).

Research Design And Methods: In 1989, blood glucose control (HbA(1c)) and AER was investigated in approximately 80% of all Danish children and adolescents with type 1 diabetes. A cohort of 339 young patients were restudied in 1995 including physical examination, demographic data, HbA(1c), AER, and fundus photography with central reading.