Table 1

Incidence rates of diabetes* and various categories of dysglycemia in the study cohort

Glucose tolerance status at baselinenPerson-yearsGlucose tolerance status at 10-year follow-upOutcomes (n)Rate per 1,000 person-years95% CI
NGT1,0779,398i-IGT555.94.4–7.6
9,398i-IFG16117.114.6–20.0
9,398IFG-IGT616.55.0–8.3
9,398i-IFG, i-IGT, or IFG-IGT27729.526.1–33.1
9,398Diabetes20922.219.4–25.4
9,398i-IFG, i-IGT, IFG-IGT, or diabetes48651.747.3–56.4
i-IFG67525IFG-IGT611.44.2–24.7
525Diabetes3261.042.1–85.0
525IFG-IGT or diabetes3872.451.7–98.0
i-IGT1631,269IFG-IGT97.13.2–3.4
1,269Diabetes8667.854.6–83.0
1,269IFG-IGT or diabetes9574.961.0–90.7
IFG-IGT69434Diabetes58133.6103.1–169.3
i-IFG, i-IGT, or IFG-IGT2992,231Diabetes17678.968.0–90.9
NGT, i-IFG, i-IGT, or IFG-IGT1,37611,629Diabetes38533.129.9–36.5
  • n = 1,376 (1,347 cases who were alive at the end of follow-up + 29 cases who developed diabetes but were not alive at the end of follow-up). i-IFG, i-IGT, IFG-IGT, and diabetes are categories of dysglycemia. IFG-IGT, combined IFG and IGT.

  • *Diabetes criteria: FPG ≥126 mg/dL (7.0 mmol/L) or 2-h PG ≥200 mg/dL (11.1 mmol/L).