Table 2—

Baseline clinical and metabolic characteristics of high-risk African Americans with normal glucose tolerance who were followed for 5–8 years and those who dropped out during the study period

ProgressorsNonprogressorsDropoutsP value
Progressors vs. dropoutsNonprogressors vs. dropouts
n181944
Age (years)45.5 ± 8.242.1 ± 8.239.7 ± 8.70.0290.416
Sex ratio (women/men)14/416/318/26
BMI (kg/m2)35.4 ± 5.933.5 ± 7.033.4 ± 4.40.1300.475
Waist-to-hip ratio0.91 ± 0.100.88 ± 0.060.92 ± 0.010.7220.021
Systolic blood pressure (mmHg)127 ± 14125.6 ± 20122.9 ± 70.1380.5557
Diastolic blood pressure (mmHg)78 ± 1281.2 ± 14.177.7 ± 7.50.9800.01
Metabolic parameters
 Fasting serum glucose (mg/dl)95 ± 880 ± 1488 ± 160.0830.064
 Fasting serum insulin (μU/ml)15.1 ± 8.111.54 ± 7.8518.36 ± 8.710.1850.055
 Fasting serum C-peptide (ng/ml)3.04 ± 0.852.64 ± 1.173.03 ± 0.920.9900.194
Minimal model parameters
Si (×10−4 × min−1 [μU/ml]−1)1.61 ± 1.132.67 ± 1.272.48 ± 1.340.010.600
Sg (×10−2 · min−1)1.48 ± 0.612.30 ± 0.972.21 ± 0.720.010.684
  • Data are means ± SD.