Exploring Variation in Glycemic Control Across and Within Eight High-Income Countries: A Cross-sectional Analysis of 64,666 Children and Adolescents With Type 1 Diabetes

OBJECTIVE: across and within eight high-income countries to best inform international benchmarking and policy recommendations. RESEARCH DESIGN AND METHODS: levels that is attributable to between-center differences (intraclass correlation ICC). We also explored the association between within-center variation and children's glycemic control. RESULTS: values of all children attending a specific center). CONCLUSIONS: , countries display different levels of center variation. The distribution of glycemic achievement within countries should be considered in developing informed policies that drive quality improvement.