The Canadian Diabetes Association 2003 Clinical Practice Guidelines... (to be updated this year), state:
Quote:
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A fasting plasma glucose (FPG) level of 7.0 mmol/L correlates most closely with a 2-hour plasma glucose (2hPG) value of >11.1mmol/L in a 75-g oral glucose tolerance test (OGTT) and best predicts the development of microvascular disease (1). This permits the diagnosis of diabetes to be made on the basis of the commonly available FPG test. Although the frequency distributions of glycosylated hemoglobin (A1C) levels in some studies have characteristics similar to those obtained from FPG and 2hPG tests, the lack of standardization of the A1C test precludes its use in the diagnosis of diabetes.
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And I agree, an A1c of 6.1% is pretty good
