Table 1

Definitions of glucose tolerance status used in this study

Definitions13 15–17NormalPrediabetesIncident diabetes
WHO-FPGFPG<6.1 mmol/L (110 mg/dL)FPG 6.1–6.9 mmol/L (110–124 mg/dL)Self-report, use of antidiabetic medications and/or FPG≥7.0 mmol/L (126 mg/dL) at follow-up.
ADA-FPGFPG<5.6 mmol/L (101 mg/dL)FPG 5.6–6.9 mmol/L (101–124 mg/dL)
2hPG2hPG<7.8 mmol/L (141 mg/dL)2hPG 7.8–11.0 mmol/L (141–198 mg/dL)Self-report, use of antidiabetic medications, FPG≥7.0 mmol/L (126 mg/dL) and/or 2hPG≥11.1 mmol/L (200 mg/dL) at follow-up.
ADA-HbA1cHbA1c<5.7% (39 mmol/mol)HbA1c 5.7%–6.4% (39–47 mmol/mol)Self-report, use of antidiabetic medications and/or HbA1c≥6.5% (48 mmol/mol) at follow-up.
IEC-HbA1cHbA1c<6.0% (42 mmol/mol)HbA1c 6.0%–6.4% (42–47 mmol/mol)
  • ADA, American Diabetes Association; FPG, fasting plasma glucose; HbA1c, glycated hemoglobin; 2hPG, 2-hour postload plasma glucose; IEC, International Expert Committee.