Evidence for current diagnostic criteria of diabetes mellitus

Table 1 Evolution of diagnostic criteria of diabetes mellitus

	WHO 1965	WHO 1980	WHO 1985	ADA1997WHO 1999	ADA 2003	IEC 2009ADA 2010WHO 2011
IFG	Not defined	Not defined	Not defined	Fasting ≥ 6.11 to < 7 mmol/L and post glucose (if measured) < 11.1 mmol/L	Fasting ≥ 5.5 to < 7 mmol/L and post glucose (if measured) < 11.1 mmol/L	Fasting ≥ 5.5 to < 7 mmol/L and post glucose (if measured) < 11.1 mmol/L or HbA1c (5.7%-6.4%)
IGT	Post glucose 6.11-7.1 mmol/L	Fasting < 8 mmol/L and/or post glucose ≥ 8 to < 11.1 mmol/L	Fasting < 7.8 mmol/L and/or post glucose ≥ 7.8 to < 11.1 mol/L	Fasting (if measured) < 7 mmol/L and post glucose ≥ 7.8 to 11.1 mmol/L	Fasting (if measured) < 7 mmol/L and post glucose 7.8 to 11.1 mmol/L	Fasting (if measured) < 7 mmol/L and post glucose 7.8 to 11.1 mmol/L or HbA1c (5.7%-6.4%)
DM	Post glucose ≥ 7.22 mmol/L	Fasting ≥ 8 mmol/L and/or post glucose ≥ 11.1 mmol/L	Fasting ≥ 7.8 mmol/L and/or post glucose ≥ 11.1 mmol/L	Fasting ≥ 7 mmol/L and/or post glucose ≥ 11.1 mmol/L	Fasting ≥ 7 mmol/L and/or post glucose ≥ 11.1 mmol/L	Fasting ≥ 7 mmol/L or Post glucose ≥ 11.1 mmol/L and/or HbA1c ≥ 6.5%

IFG: Impaired fasting glucose; IGT: Impaired glucose tolerance; DM: Diabetes mellitus; IEC: International Expert Committee; ADA: American Diabetes Association; WHO: World Health Organization; HbA1c: Glycated hemoglobin