Sample	Venous plasma glucose (mg/dL)
	O'Sullivan's criteria* 100 g OGTT	Carpenter and Coustan's criteria* 100 g OGTT	WHO 75 g OGTT
Fasting	105	95	≥126 and/or
1 hr	190	180	–
2 hr	165	155	≥ 140
3 hr	145	140	–

OGTT: oral glucose tolerance test, WHO: World Health Organization.

^*Gestational diabetes is diagnosed if two or more of the values are met or exceeded.