또한, DCCT에서 당화혈 색소를 8.0%에서 7.2%로 낮추면 망막병증의 진행을 40∼50% 늦출 수 있다고 보고하였다.
In addition, it was reported that lowering glycated hemoglobin from 8.0% to 7.2% in DCCT could slow the progression of retinopathy by 40-50%.