TABLE 1

Baseline characteristics of nondiabetic study subjects

NGTIFG-IGT
n488265
Mean age (years)52.9 ± 16.661.8 ± 14.0
Women192 (39.3)74 (27.9)
Caucasian468 (95.9)252 (95.1)
Age 65 years or older128 (26.2)129 (48.7)
1st degree relative with diabetes122 (25.0)76 (28.7)
BMI ≥25 kg/m2173 (35.5)158 (59.6)
Waist circumference ≥88 cm (women) or ≥102 cm (men)29 (6.0)46 (17.2)
Follow-up
 Mean duration (years)11.4 ± 5.310.2 ± 5.0
 At least 6 years404 (82.7)203 (76.6)
 At least 10 years268 (54.9)117 (44.2)
 At least 16 years122 (25.0)41 (15.5)
 At least 20 years32 (6.6)12 (4.5)
  • *Data are n (%) or means ± SD.