Evaluating the agreement of continuous glucose monitoring system with venous methods for glycemic index determination (opens in new tab)

BackgroundContinuous glucose monitoring systems (CGMS) are widely used in diabetes care, but their reliability for standardized food glycemic index (GI) measurement remains unclear. Most previous studies used capillary blood rather than venous glucose as the reference.ObjectiveThis study aimed to verify the consistency between the CGMS and standardized venous sampling methods for measuring postprandial incremental area under the curve (IAUC) and GI values.MethodsThis study was conducted in ac...