Table 2.
Differences in oral glucose tolerance tests results between the new GDM group, the old GDM group, and NGT group.
| Mean plasma glucose mg/dL (SD) | New GDM Group 1 |
P
1 versus 2 |
Old GDM Group 2 |
P
2 versus 3 |
NGT Group 3 |
P
1 versus 3 |
|---|---|---|---|---|---|---|
| N (%) | 160 (2.4) | 222 (3.3) | 6345 (94.3) | |||
| 0 min | 85.6 (10.8) | <0.001 | 92.0 (18.1) | <0.001 | 77.8 (6.1) | <0.001 |
| 60 min | 164.2 (28.0) | <0.001 | 191.3 (32.8) | <0.001 | 133.9 (23.3) | <0.001 |
| 120 min | 147.1 (25.9) | <0.001 | 180.1 (31.2) | <0.001 | 119.6 (19.8) | <0.001 |
GDM: gestational diabetes; new GDM group: prior classified normal by old criteria and now GDM according to the new IADPSG criteria; old GDM group: classified GDM according to Carpenter and Coustan criteria (old criteria); NGT: normal glucose tolerance; SD: standard deviation.