[Evidence of the value of good compensation in diabetes (conclusions of the Diabetes Control and Complications Trial)].

The Diabetes Control and Complications Trial--DCCT--is the longest and largest perspective study in the history of diabetes which provides evidence that reduction of the blood sugar level delays or prevents the development of late diabetic complications. The main conclusions of DCCT proved that correct metabolic control reduces the risk of late diabetes, and to the majority of patients with IDDM intensified treatment should be recommended. DCCT confirmed also the correctness of therapeutic recommendations given in the Saint Vincent declaration.