Table 1.
Criteria indicating oral glucose tolerance test (OGTT) screening for gestational diabetes mellitus (GDM) and cut-off threshold value for GDM diagnosis according to the local guidelines 2002 within the two catchment areas.
| Criteria indicating OGTT screening for GDM Cut-off threshold at OGTT indicating GDM diagnosis | Umeå University Hospital UUH) | Sunderby Hospital (SH) |
|---|---|---|
| Risk factors in medical history | ||
| Family history of diabetes (parents and siblings) | Yes | Yes |
| Previous pregnancy with GDM | Yes | Yes |
| Previous child with birth weight ≥4500 g | Yes | Yes |
| Maternal body weight before pregnancy (kg) | ≥90 | ≥90 |
| Body Mass Index, BMI (kg/m2) | No | ≥33 |
| Risk factors developed during pregnancy | ||
| Randomly controlled blood glucose level at any antenatal visit during pregnancy (mmol/l) | ≥8.0 | ≥7.1 |
| Accelerated fetal growth | Yes | Yes |
| Polyhydramniosis | Yes | Yes |
| Cut-off threshold at 75 g OGTT indicating GDM diagnosis | ||
| 2 hours blood glucose value (mmol/l) | ≥9.0 | ≥8.9 |