Table 2.

Various diagnostic criteria for gestational diabetes mellitus and cut-off values

Diagnostic criteria	Sample	WVB (mg/dL)	VP
O’Sullivan and Mahan (Women screened using 3-h 100 g OGTT and two cut-off values are required to diagnose GDM)[28,31]	Fasting	90	90 mg/dL
	1 h	165	165 mg/dL
	2 h	143	145 mg/dL
	3 h	127	125 mg/dL
NDDG criteria (Women screened using 3-h 100 g OGTT and two cut-off values are required to diagnose GDM)[32]	Fasting	90	105 mg/dL
	1 h	170	190 mg/dL
	2 h	145	165 mg/dL
	3 h	125	145 mg/dL
Carpenter and coustan criteria (Women screened using 3-h 100 g OGTT and two cut-off values are required to diagnose GDM)[33]	Fasting	90	95 mg/dL
	1 h	165	180 mg/dL
	2 h	143	155 mg/dL
	3 h	127	140 mg/dL
WHO 1999 criteria (Women screened using 2-h 75 g OGTT and one cut-off value is required to diagnose GDM)[5]	Fasting		126 mg/dL
	2 h		140 mg/dL
Recent IADPSG criteria (GDM) (Women screened using 2-h 75 g OGTT and one cut-off value is required to diagnose GDM)[8]	Fasting		92 mg/dL
	1 h		180 mg/dL
	2 h		153 mg/dL
Recent IADPSG criteria (Overt diabetes) (Women screened using 2-h 75 g OGTT and one cut-off value is required to diagnose GDM)[8]	Fasting		126 mg/dL
	HbA1c		≥ 6.5%
	RPG		200 mg/dL

GDM: Gestational diabetes mellitus; RPG: Random plasma glucose; VP: Venous blood; WHO: World Health Organization; WVB: Whole venous blood; HbA1c: Glycosylated haemoglobin; IADPSG: International Association of Diabetes and Pregnancy Study Groups; NDDG: National Diabetes Data Group; OGTT: Oral Glucose Tolerance Test.