Table 1.

Descriptors of high risk of Type 2 diabetes and their laboratory test‐based definitions

Descriptor	Definition
WHO‐defined IFG	FPG 6.1–6.9 mmol/l
ADA‐defined IFG	FPG 5.6–6.9 mmol/l
IGT	FPG <7.0 mmol/l and 2‐h post‐75‐g OGTT glucose value ≥7.8 mmol/l and <11.1 mmol/l
Impaired glucose regulation	IFG as defined by WHO and/or IGT
Prediabetes (defined by the ADA)	FPG 5.6–6.9 mmol/l and/or HbA1c 39–47 mmol/mol (5.7–6.4%) and/or 2‐h post‐75‐g OGTT glucose value ≥7.8 mmol/l and <11.1 mmol/l
Non‐diabetic hyperglycaemia	FPG 5.5–6.9 mmol/l and/or HbA1c 42–47 mmol/mol (6.0–6.4%)

ADA, American Diabetes Association; FPG, fasting plasma glucose; IFG, Impaired fasting glucose; IGT, impaired glucose tolerance; OGTT, oral glucose tolerance test.