Table 4.
Characteristics of included studies using 50 g oral glucose challenge test (OGCT) or 100 g oral glucose tolerance test (OGTT) for diagnosis of gestational diabetes
| No of women | Test type | Test timing* | Diagnosis exclusion criteria (mmol/L) | Outcomes† | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| F | 1 | 2 | LGA | Macrosomia | Sh dystocia | Neonatal hypogly | Pre-eclampsia/PIH | Preterm birth | C section | Ind labour | Ins delivery | ||||
| Landon,442011, US (multicentre) | 1368 | 100 g OGTT | X | X | X | Fasting >5.3 | X | — | X | — | X | — | — | — | — |
| Little,451990, US (Missouri) | 287 | 100 g OGTT | — | — | X | 75 g OGTT fasting >5.7 or 2 hour >9.2 | X | — | X | X | — | — | X | — | — |
| Riskin-Mashiah,46 2009, Israel (Haifa) | 6129 | 100 g OGTT | X | — | — | 100 g OGTT first trimester fasting >5.8 | — | X | — | — | — | — | X | — | — |
| Sermer,32 1995, Canada (Toronto) | 3637 | 50 g OGCT/100 g OGTT | X | X | X | 100 g OGTT ≥2 values: fasting >5.8 or 1 hour >10.5 or 2 hour >9.1 or 3 hour >8.0 | — | X | — | — | X | — | X | — | — |
| Tallarigo,47 1986, Italy (Pisa) | 249 | 100 g OGTT | — | — | X | 100 g OGTT ≥2 values: fasting >5.8 or 1 hour >10.5 or 2 hour >9.1 or 3 hour >8.0 | — | X | — | — | — | X | X | — | — |
*F=fasting, 1=one hour post-load, 2=two hours post-load.
†Large for gestational age, macrosomia, shoulder dystocia, neonatal hypoglycaemia, pre-eclampsia/PIH (pregnancy induced hypertension), preterm birth, caesarean section, induced labour, instrumental delivery.