Does Duration of Illness Affect HbA1C Level of Type 1 DM Children? Ikhsan Rifai Darmawan1, Nur Rochmah2*, Jongky Hendro Prajitno3, and Rendy Steven Pratama4 Abstract Background: HbA1C is average blood glucose levels for the last two or three months. The ideal level of HbA1C in diabetes sufferers is 6.5% or