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IN BRIEF This article offers a discussion of available tests used to screen for and diagnose type 2 diabetes. It reviews the evidence supporting different screening strategies and describes the test characteristics of different diagnostic approaches, with particular reference to the American Diabetes Association's 1997 guidelines for diagnosis and 2009 standards of medical care for diabetes. The recent International Expert Committee report on the role of A1C in diagnosis is also discussed.
Cox et al. (Thu,) studied this question.