• H B Mortensen, S Vestermark, and K W Kastrup.
• Acta Paediatr Scand. 1982 Mar 1; 71 (2): 217-22.

AbstractThe glycosylated hemoglobin component, hemoglobin A1c, was estimated in 92 children with insulin dependent diabetes mellitus by an iso-electric focusing procedure during an observation period of 18 months. A significant correlation between hemoglobin A1c and the actual metabolic control according to clinical ratings was found. A seasonal variation in the concentration of the hemoglobin A1c was observed with the lowest level in the months of June and July consistent with an improved metabolic control in the diabetic children during the summer period. A direct relationship was found between metabolic control as assessed by hemoglobin A1c and retarded linear growth expressed as standard deviation score for height. Children with poorly controlled diabetes (initial hemoglobin A1c level above 12.5%) improved their carbohydrate tolerance shown by a significantly lower glycohemoglobin level at the end of the observation period. Consequently, hemoglobin A1c is particularly useful in the routine management of insulin dependent diabetic children in poor metabolic control. Frequent determinations are necessary since in these patients the glucose profiles are prone to great variations, which may lead to changes in the hemoglobin A1c concentration of about 1% in a week.

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