| |
NDDG (1979)a
|
C&C (1982)a
|
WHO (2006)b
|
|---|
|
1 hr-GCT (50 g) at 24 to 28 weeks gestation
|
≥140 (7.8)
|
≥140 (7.8)
|
92 to 125 (5.1 to 6.9)
|
|
3 hr-OGTT
|
|
1 hr
|
≥190
|
≥180
|
≥180 (10)
|
|
2 hr
|
≥165
|
≥155
|
153 to 199 (8.5 to 11)
|
|
3 hr
|
≥145
|
≥140
| |
- Values are expressed in mg/dL (mmol/L). a100 g OGTT; b75 g OGTT. Gestational pre-diabetes is confirmed when there is an abnormal result in the GCT test and either normal or 1 abnormal OGTT test result [23,24]. If there are two or more abnormal values in the OGTT, the patient is diagnosed with GDM [14]. C&C, Carpenter and Coustan; GCT, glucose challenge test; NDDG, National Diabetes Data Group; OGTT, oral glucose tolerance test; WHO, World Health Organization.
