A rational approach to diagnosing prediabetes is essential to identify those who would benefit from entering diabetes prevention programs. Impaired fasting glucose and impaired glucose tolerance are similar in relation to their ability to identify those at risk of diabetes or cardiovascular disease; however, because they identify different segments of the at-risk population, there is value in undertaking glucose tolerance testing to ensure that both conditions can be diagnosed. Simple noninvasive diabetes risk scores offer a valuable entry point in the diagnosis of prediabetes, enabling the identification of those who need blood testing.
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