Table 1.

Diagnostic criteria for GDM

	One-step approach 75 g OGTT	Two-step approach 100 g OGTT after positive 50 g OGCT*
Criteria		Carpenter/Coustan	NDDG
Fasting	92	95	105
1 h	180	180	180
2 h	153	155	165
3h	-	140	145
Diagnosis	1 or more values of ≥	2 or more values of ≥

g – grams of glucose; NDDG – American National Diabetes Data Group.

* glucose level ≥ 140 mg/dL