Significance of “Time below Range” as a Glycemic Marker Derived from Continuous Glucose Monitoring in Japanese Children and Adolescents with Type 1 Diabetes

Introduction: We evaluated the frequencies of various glycemic markers derived from continuous glucose monitoring in Japanese children and adolescents with type 1 diabetes and assessed the significance of hypoglycemia duration. Methods: We enrolled 85 children and adolescents (36 boys and 49 girls) with type 1 diabetes who used FreeStyle ® Libre in the present study. Frequencies of blood glucose levels as time within target range (TIR; 70–180 mg/dL), time below target range (TBR;