Table 5.2-16. Diagnostic criteria for gestational diabetes mellitus

75-g OGTT

100-g OGTT

WHOa

EASDa

IADPSGa,d

O’Sullivan and Mahanb

NDDGb,c

Carpenter and Coustanb,c,d

Sample

Venous plasma

Venous plasma

Venous plasma

Venous whole blood

Venous plasma

Venous plasma

Fasting glucose levels

5.1-6.9 mmol/L

(92-125 mg/dL)

≥6.0 mmol/L

(108 mg/dL)

≥5.1 mmol/L

(92 mg/dL)

≥5.0 mmol/L

(90 mg/dL)

≥5.8 mmol/L

(105 mg/dL)

≥5.3 mmol/L

(95 mg/dL)

1 h

≥10.0 mmol/L

(180 mg/dL)

≥10.0 mmol/L

(180 mg/dL)

>9.1 mmol/L

(164 mg/dL)

≥10.6 mmol/L

(190 mg/dL)

≥10.0 mmol/L

(180 mg/dL)

2 h

8.5-11.0 mmol/L

(153-199 mg/dL)

≥9.0 mmol/L

(162 mg/dL)

≥8.5 mmol/L

(153 mg/dL)

>8.0 mmol/L

(144 mg/dL)

≥9.2 mmol/L

(165 mg/dL)

≥8.6 mmol/L

(155 mg/dL)

3 h

>6.9 mmol/L

(124 mg/dL)

≥8.0 mmol/L

(145 mg/dL)

≥7.8 mmol/L

(140 mg/dL)

a Diagnosis is defined by one abnormal glucose value at any time point.

b Diagnosis is defined by two or more abnormal values at different time points.

c Diagnostic thresholds recommended by the American College of Obstetricians and Gynecologists.

d Diagnostic thresholds recommended by the American Diabetes Association.

EASD, European Association for the Study of Diabetes; IADPSG, International Association of Diabetes and Pregnancy Study Group; NDDG, National Diabetes Data Group; OGTT, oral glucose tolerance test; WHO, World Health Organization.