IADPSG and ADA criteria for a positive two-hour 75-gram oral glucose tolerance test for the diagnosis of gestational diabetes

Two-hour 75-gram oral glucose tolerance test thresholds
Fasting	92 mg/dL (5.1 mmol/L)
or
One hour	180 mg/dL (10 mmol/L)
or
Two hour	153 mg/dL (8.5 mmol/L)

The diagnosis of gestational diabetes mellitus is made at 24 to 28 weeks of gestation when ≥1 plasma glucose value is at or above these thresholds.

ADA: American Diabetes Association; IADPSG: International Association of the Diabetes and Pregnancy Study Groups.

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