Table 2: Summery of studies compared POC glucose testing with laboratory methods in the diagnosis of GDM. WHO: world health organisation, ADA: American Diabetes Association, FIGO: International Federation of Gynaecology and Obstetrics, DIPSI: Diabetes in Pregnancy Study Group India. NDDG: National Diabetes Data Group. CBG: capillary blood glucose. VPG: Venous plasma glucose. VBG : venous whole blood glucose