Skip to main content

Table 1 Gestational diabetes mellitus screening and diagnostic criteria

From: Climate factors and gestational diabetes mellitus risk – a systematic review

Guidelines Year Approach GCT GCT Glucose Threshold OGTT OGTT Glucose Threshold Values GDM Diagnosis
Fasting 1-h 2-h 3-h
One-step approaches
 International Association of Diabetes and Pregnancy Study Group (IADPSG) [48] 2010 1-step 75-g 5.1 mmol/L (92 mg/dL) 10 mmol/L (180 mg/dL) 8.5 mmol/L (153 mg/dL) ≥1 abnormal OGTT
 World Health Organization (WHO) [49] 1999 1-step 75-g 7 mmol/L (126 mg/dL) 7.8 mmol/L (140 mg/dL) ≥1 abnormal OGTT
 WHO - Modified [45, 50] 2006 1-step 75-g DIP: 7 mmol/L (126 mg/dL); GDM: 5.1–6.9 mmol/L (92–124 mg/dL)   DIP: 11.1 mmol/L (200 mg/dL); GDM: 8.5–11 mmol/L (153–198 mg/dL)   DIP or GDM: ≥1 abnormal OGTT
Two-step approaches
 Australian Diabetes in Pregnancy Society (ADIPS) [51] 1991 2-step 50-g 7.8 mmol/L (140 mg/dL) 75-g 5.5 mmol/L (99 mg/dL) 8 mmol/L (144 mg/dL) ≥1 abnormal OGTT
 Carpenter and Coustan [52] 1982 2-step 50-g 7.8 mmol/L (140 mg/dL) 100-g 5.3 mmol/L (95 mg/dL) 10 mmol/L (180 mg/dL) 8.6 mmol/L (155 mg/dL) 7.8 mmol/L (140 mg/dL) ≥2 abnormal OGTT
 National Diabetes Data Group (NDDG) Criteria [53] 1979 2-step 50-g 7.8 mmol/L (140 mg/dL) 100-g 5.8 mmol/L (105 mg/dL) 10.5 mmol/L (189 mg/dL) 9.2 mmol/L (166 mg/dL) 8.0 mmol/L (144 mg/dL) ≥2 abnormal OGTT
 WHO - Modified [46, 49] 1999 2-step Random glucose 6.5 mmol/L (117 mg/dL) 75-g 6 mmol/ (108 mg/dL) 7.8 mmol/L (140 mg/dL) ≥1 abnormal OGTT
 WHO - Modified [37] 1999 2-step 50-g 7.7 mmol/L (139 mg/dL) 75-g 6.1 mmol/L 7.8 mmol/L ≥1 abnormal OGTT
  1. Abbreviations: GCT glucose challenge test, OGT oral glucose tolerance test, GDM gestational diabetes mellitus, DIP diabetes in pregnancy