Objectives: To determine the correlation between fructosamine, used to assess glycemia when HbA1c is not appropriate, with average blood glucose as measured by continuous glucose monitoring (CGM) in children with type 1 diabetes.
Methods: 97 blood samples were collected from 70 participants in the CGM TIME Trial. Each eligible participant had 3 weeks of CGM data with at least 60% CGM adherence prior to blood collection. Ordinary least squares linear regression incorporating restricted cubic splines was used to determine association between fructosamine and mean blood glucose.
Results: An association was found between fructosamine levels and mean blood glucose with F-statistic of 9.543 p-value <0.001). Data were used to create formulae and a conversion chart for calculating mean blood glucose from fructosamine levels for clinical use.
Conclusions: There is a complex relationship between average blood glucose and fructosamine.
Keywords: children; continuous glucose monitoring; fructosamine; type 1 diabetes.
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