Carpenter and Coustan/ ADA (2004)* ACOG (2011)* WHO/ NICE (2008)+ RANZCOG (2011)+ IASPSG/ ADA (2012)+
  75g OGTT 100g OGTT 100g OGTT 75g OGTT 75g OGTT 75g OGTT
Fasting 5.3mmol/l 5.3mmol/l 5.3mmol/l 7 mmol/l 5.5 mmol/l 5.1mmol/l
1-h 10 mmol/l 10 mmol/l 10 mmol/l     10.mmol/l
2-h 8.6mmol/l 8.6mmol/l 8.6mmol/l 7.8mmol/l 8.0/9.0mmol/l # 8.5mmol/l
3-h   7.8mmol/l 7.8mmol/l      
*Diagnosis made if two or more glucose value met or exceeded.
+Diagnosis made if one or more glucose value met or exceeded.
#8.0 mmol/l by Australian criteria, 9.0 mmol/l by NZ criteria.
Table 1: Diagnostic criteria by various authorities