Table 1

Baseline demographic, anthropometric, and metabolic characteristics of participants without diabetes at baseline by conversion to diabetes at 5-year follow-up

ConvertersNonconvertersP
n128698
Female sex (%)59.4 (50.7–67.5)55.4 (51.7–59.1)0.410
Ethnicity (%)0.647
    Non-Hispanic whites39.1 (31.0–47.8)40.4 (36.8–44.1)
    African Americans22.7 (16.2–30.7)25.4 (22.3–28.7)
    Hispanics38.3 (30.3–47.0)34.2 (30.8–37.8)
IGT (%)65.6 (57.0–73.3)26.5 (23.4–29.9)<0.001
Family history of diabetes (%)50.0 (41.4–58.6)38.5 (35.0–42.2)0.016
Age (years)56.5 ± 8.154.4 ± 8.50.009
BMI (kg/m2)30.8 ± 6.127.8 ± 5.3<0.001
Waist circumference (cm)95.2 ± 12.089.3 ± 12.3<0.001
Fasting glucose (mmol/l)5.83 ± 0.555.35 ± 0.54<0.001
2-h glucose (mmol/l)8.42 ± 1.696.60 ± 1.73<0.001
Fasting insulin (pmol/l)*105.3 ± 98.670.9 ± 59.8<0.001
2-h insulin (pmol/l)*611.6 ± 603.9390.7 ± 515.4<0.001
SI (× 10−4 min−1 · μU−1 · ml−1)*1.06 ± 1.101.92 ± 2.00<0.001
AIR (μU/ml)*37.6 ± 43.853.0 ± 62.4<0.001
  • Data are n, % (95% CI), or means ± SD. P values were derived from χ2 or t tests, as appropriate.

  • *Log-transformed variables. These variables were then back-transformed to their units for presentation in the table.