. Author manuscript; available in PMC: 2019 Aug 13.

Published in final edited form as: Lancet Diabetes Endocrinol. 2016 Oct 12;4(12):1037–1049. doi: 10.1016/S2213-8587(16)30278-9

Table 4:

Recommended testing for gestational diabetes in obese pregnant women

	Early pregnancy testing	Standard gestational diabetes test (second to third trimester)	Criteria for diagnosing gestational diabetes
WHO^* (global)	Yes. Diabetes and gestational diabetes	75 g OGTT	Any of the following: fasting glucose concentration ≥5.1 mmol/L; 1 h OGTT concentration ≥10.0 mmol/L; 2 h OGTT ≥8.5 mmol/L
ACOG^* (USA)	Yes in presence of risk factors, including maternal BMI ≥30 kg/m², history of gestational diabetes	Two step: non-fasting 50 g glucose challenge test, followed by 100 g OGTT if glucose challenge test ≥7.8 mmol/L	Fasting glucose concentration ≥5.3 mmol/L; for OGTT: 1 h glucose ≥10.0 mmol/L; 2 h glucose ≥8.6 mmol/L; 3 h glucose ≥7.8 mmol/L (two values ≥ threshold for diagnosis)
ADA (USA)	Not specified	WHO or ACOG approach^*	WHO or ACOG criteria^*
Endocrine Society (USA)	Yes. Aimed at detection of overt diabetes	75 g OGTT	Any of the following: fasting glucose concentration ≥5.1 mmol/L; 1 h OGTT ≥10.0 mmol/L; 2 h OGTT ≥8.5 mmol/L
NICE (UK)	Only if previous gestational diabetes	75 g OGTT	Either of these values: fasting glucose concentration ≥5.6 mmol/L; 2 h OGTT ≥7.8 mmol/L
EBCOG (Europe)	Yes. Aimed at detection of overt diabetes	Either WHO or ACOG approach^*	Fasting glucose concentration^* ≥5.1 mmol/L; 1 h OGTT ≥10.0 mmol/L; 2 h OGTT ≥8.5 mmol/L

OGTT=oral glucose tolerance test. ACOG=American College of Obstetrics and Gynecology. ADA=American Diabetes Association. NICE=National Institute for Health and Care Excellence. EBCOG=European Board and College of Obstetrics and Gynaecology.

Using the approach or criteria defined by WHO and ACOG.