Table 3

Categories of increased risk for diabetes (prediabetes)*

FPG 100–125 mg/dl (5.6–6.9 mmol/l): IFG
2-h plasma glucose in the 75-g OGTT 140–199 mg/dl (7.8–11.0 mmol/l): IGT
A1C 5.7–6.4%
  • *For all three tests, risk is continuous, extending below the lower limit of the range and becoming disproportionately greater at higher ends of the range.