Table 1. Laboratory criteria (modified from [18]) (2).
| No diabetes | Increased risk of diabetes | Diabetes | |
| FPG | < 100 mg/dl*1 (< 5.6 mmol/l) |
100–125 mg/dL*1 (5.6–6.9 mmol/L) |
≥ 126 mg/dL (≥ 7.0 mmol/L) |
| HbA1c*2 | < 5.7% (< 39 mmol/mol) |
5.7 up to < 6.5% (39 up to < 48 mmol/mol) |
≥ 6.5% (≥ 48 mmol/mol) |
| CPG | ≥ 200 mg/dL (≥ 11.1 mmol/L) |
*1 The German College of General Practitioners and Family Physicians (Deutsche Gesellschaft für Allgemeinmedizin und Familienmedizin, DEGAM), the Drug Commission of the German Medical Association (Arzneimittelkommission der deutschen Ärzteschaft, AkdÄ), the German Society of Wound Healing and Wound Treatment (Deutsche Gesellschaft für Wundheilung und Wundbehandlung, DGfW), and the German Society of Nursing Science (Deutsche Gesellschaft für Pflegewissenschaft, DGP) concur with the WHO cut-off values for FPG: no diabetes < 110 mg/dL (< 6.1 mmol/L), increased risk of diabetes 110–125 mg/dL (6.1–6.9 mmol/L) (19, 20)
*2 For particular features/influencing factors (e.g., age) see NDMG
HbA1c, hemoglobin A1c; CPG, casual plasma glucose; FPG, fasting plasma glucose